256844280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^2$

素因数の和:88

約数の個数: 432

約数和(自身を含む): 1039809960

約数和(自身を除く): 782965680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 19, 20, 21, 22, 24, 28, 30, 33, 35, 38, 40, 42, 44, 49, 55, 56, 57, 60, 66, 70, 76, 77, 84, 88, 95, 98, 105, 110, 114, 120, 121, 132, 133, 140, 147, 152, 154, 165, 168, 190, 196, 209, 210, 220, 228, 231, 242, 245, 264, 266, 280, 285, 294, 308, 330, 361, 363, 380, 385, 392, 399, 418, 420, 440, 456, 462, 484, 490, 532, 539, 570, 588, 605, 616, 627, 660, 665, 722, 726, 735, 760, 770, 798, 836, 840, 847, 924, 931, 968, 980, 1045, 1064, 1078, 1083, 1140, 1155, 1176, 1210, 1254, 1320, 1330, 1444, 1452, 1463, 1470, 1540, 1596, 1617, 1672, 1694, 1805, 1815, 1848, 1862, 1960, 1995, 2090, 2156, 2166, 2280, 2299, 2310, 2420, 2508, 2527, 2541, 2660, 2695, 2793, 2888, 2904, 2926, 2940, 3080, 3135, 3192, 3234, 3388, 3610, 3630, 3724, 3971, 3990, 4180, 4235, 4312, 4332, 4389, 4598, 4620, 4655, 4840, 5016, 5054, 5082, 5320, 5390, 5415, 5586, 5852, 5880, 5929, 6270, 6468, 6776, 6897, 7220, 7260, 7315, 7448, 7581, 7942, 7980, 8085, 8360, 8470, 8664, 8778, 9196, 9240, 9310, 10108, 10164, 10241, 10780, 10830, 11172, 11495, 11704, 11858, 11913, 12540, 12635, 12705, 12936, 13794, 13965, 14440, 14520, 14630, 15162, 15884, 15960, 16093, 16170, 16940, 17556, 17689, 17787, 18392, 18620, 19855, 20216, 20328, 20482, 21560, 21660, 21945, 22344, 22990, 23716, 23826, 25080, 25270, 25410, 27588, 27797, 27930, 29260, 29645, 30324, 30723, 31768, 32186, 32340, 33880, 34485, 35112, 35378, 35574, 37240, 37905, 39710, 40964, 43320, 43681, 43890, 45980, 47432, 47652, 48279, 50540, 50820, 51205, 53067, 55176, 55594, 55860, 58520, 59290, 59565, 60648, 61446, 64372, 64680, 68970, 70756, 71148, 75810, 79420, 80465, 81928, 83391, 87362, 87780, 88445, 88935, 91960, 95304, 96558, 101080, 101640, 102410, 106134, 111188, 111720, 112651, 118580, 119130, 122892, 128744, 131043, 137940, 138985, 141512, 142296, 151620, 153615, 158840, 160930, 166782, 174724, 175560, 176890, 177870, 193116, 194579, 204820, 212268, 218405, 222376, 225302, 237160, 238260, 241395, 245784, 262086, 265335, 275880, 277970, 303240, 305767, 307230, 321860, 333564, 337953, 349448, 353780, 355740, 386232, 389158, 409640, 416955, 424536, 436810, 450604, 476520, 482790, 524172, 530670, 555940, 563255, 583737, 611534, 614460, 643720, 655215, 667128, 675906, 707560, 711480, 778316, 833910, 873620, 901208, 917301, 965580, 972895, 1048344, 1061340, 1111880, 1126510, 1167474, 1223068, 1228920, 1310430, 1351812, 1528835, 1556632, 1667820, 1689765, 1747240, 1834602, 1931160, 1945790, 2122680, 2140369, 2253020, 2334948, 2446136, 2620860, 2703624, 2918685, 3057670, 3335640, 3379530, 3669204, 3891580, 4280738, 4506040, 4586505, 4669896, 5241720, 5837370, 6115340, 6421107, 6759060, 7338408, 7783160, 8561476, 9173010, 10701845, 11674740, 12230680, 12842214, 13518120, 17122952, 18346020, 21403690, 23349480, 25684428, 32105535, 36692040, 42807380, 51368856, 64211070, 85614760, 128422140, 256844280]

約数ペア:

[(1, 256844280), (2, 128422140), (3, 85614760), (4, 64211070), (5, 51368856), (6, 42807380), (7, 36692040), (8, 32105535), (10, 25684428), (11, 23349480), (12, 21403690), (14, 18346020), (15, 17122952), (19, 13518120), (20, 12842214), (21, 12230680), (22, 11674740), (24, 10701845), (28, 9173010), (30, 8561476), (33, 7783160), (35, 7338408), (38, 6759060), (40, 6421107), (42, 6115340), (44, 5837370), (49, 5241720), (55, 4669896), (56, 4586505), (57, 4506040), (60, 4280738), (66, 3891580), (70, 3669204), (76, 3379530), (77, 3335640), (84, 3057670), (88, 2918685), (95, 2703624), (98, 2620860), (105, 2446136), (110, 2334948), (114, 2253020), (120, 2140369), (121, 2122680), (132, 1945790), (133, 1931160), (140, 1834602), (147, 1747240), (152, 1689765), (154, 1667820), (165, 1556632), (168, 1528835), (190, 1351812), (196, 1310430), (209, 1228920), (210, 1223068), (220, 1167474), (228, 1126510), (231, 1111880), (242, 1061340), (245, 1048344), (264, 972895), (266, 965580), (280, 917301), (285, 901208), (294, 873620), (308, 833910), (330, 778316), (361, 711480), (363, 707560), (380, 675906), (385, 667128), (392, 655215), (399, 643720), (418, 614460), (420, 611534), (440, 583737), (456, 563255), (462, 555940), (484, 530670), (490, 524172), (532, 482790), (539, 476520), (570, 450604), (588, 436810), (605, 424536), (616, 416955), (627, 409640), (660, 389158), (665, 386232), (722, 355740), (726, 353780), (735, 349448), (760, 337953), (770, 333564), (798, 321860), (836, 307230), (840, 305767), (847, 303240), (924, 277970), (931, 275880), (968, 265335), (980, 262086), (1045, 245784), (1064, 241395), (1078, 238260), (1083, 237160), (1140, 225302), (1155, 222376), (1176, 218405), (1210, 212268), (1254, 204820), (1320, 194579), (1330, 193116), (1444, 177870), (1452, 176890), (1463, 175560), (1470, 174724), (1540, 166782), (1596, 160930), (1617, 158840), (1672, 153615), (1694, 151620), (1805, 142296), (1815, 141512), (1848, 138985), (1862, 137940), (1960, 131043), (1995, 128744), (2090, 122892), (2156, 119130), (2166, 118580), (2280, 112651), (2299, 111720), (2310, 111188), (2420, 106134), (2508, 102410), (2527, 101640), (2541, 101080), (2660, 96558), (2695, 95304), (2793, 91960), (2888, 88935), (2904, 88445), (2926, 87780), (2940, 87362), (3080, 83391), (3135, 81928), (3192, 80465), (3234, 79420), (3388, 75810), (3610, 71148), (3630, 70756), (3724, 68970), (3971, 64680), (3990, 64372), (4180, 61446), (4235, 60648), (4312, 59565), (4332, 59290), (4389, 58520), (4598, 55860), (4620, 55594), (4655, 55176), (4840, 53067), (5016, 51205), (5054, 50820), (5082, 50540), (5320, 48279), (5390, 47652), (5415, 47432), (5586, 45980), (5852, 43890), (5880, 43681), (5929, 43320), (6270, 40964), (6468, 39710), (6776, 37905), (6897, 37240), (7220, 35574), (7260, 35378), (7315, 35112), (7448, 34485), (7581, 33880), (7942, 32340), (7980, 32186), (8085, 31768), (8360, 30723), (8470, 30324), (8664, 29645), (8778, 29260), (9196, 27930), (9240, 27797), (9310, 27588), (10108, 25410), (10164, 25270), (10241, 25080), (10780, 23826), (10830, 23716), (11172, 22990), (11495, 22344), (11704, 21945), (11858, 21660), (11913, 21560), (12540, 20482), (12635, 20328), (12705, 20216), (12936, 19855), (13794, 18620), (13965, 18392), (14440, 17787), (14520, 17689), (14630, 17556), (15162, 16940), (15884, 16170), (15960, 16093)]