2457840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:60

約数の個数: 240

約数和(自身を含む): 10177920

約数和(自身を除く): 7720080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 19, 20, 21, 22, 24, 28, 30, 33, 35, 38, 40, 42, 44, 48, 49, 55, 56, 57, 60, 66, 70, 76, 77, 80, 84, 88, 95, 98, 105, 110, 112, 114, 120, 132, 133, 140, 147, 152, 154, 165, 168, 176, 190, 196, 209, 210, 220, 228, 231, 240, 245, 264, 266, 280, 285, 294, 304, 308, 330, 336, 380, 385, 392, 399, 418, 420, 440, 456, 462, 490, 528, 532, 539, 560, 570, 588, 616, 627, 660, 665, 735, 760, 770, 784, 798, 836, 840, 880, 912, 924, 931, 980, 1045, 1064, 1078, 1140, 1155, 1176, 1232, 1254, 1320, 1330, 1463, 1470, 1520, 1540, 1596, 1617, 1672, 1680, 1848, 1862, 1960, 1995, 2090, 2128, 2156, 2280, 2310, 2352, 2508, 2640, 2660, 2695, 2793, 2926, 2940, 3080, 3135, 3192, 3234, 3344, 3696, 3724, 3920, 3990, 4180, 4312, 4389, 4560, 4620, 4655, 5016, 5320, 5390, 5586, 5852, 5880, 6160, 6270, 6384, 6468, 7315, 7448, 7980, 8085, 8360, 8624, 8778, 9240, 9310, 10032, 10241, 10640, 10780, 11172, 11704, 11760, 12540, 12936, 13965, 14630, 14896, 15960, 16170, 16720, 17556, 18480, 18620, 20482, 21560, 21945, 22344, 23408, 25080, 25872, 27930, 29260, 30723, 31920, 32340, 35112, 37240, 40964, 43120, 43890, 44688, 50160, 51205, 55860, 58520, 61446, 64680, 70224, 74480, 81928, 87780, 102410, 111720, 117040, 122892, 129360, 153615, 163856, 175560, 204820, 223440, 245784, 307230, 351120, 409640, 491568, 614460, 819280, 1228920, 2457840]

約数ペア:

[(1, 2457840), (2, 1228920), (3, 819280), (4, 614460), (5, 491568), (6, 409640), (7, 351120), (8, 307230), (10, 245784), (11, 223440), (12, 204820), (14, 175560), (15, 163856), (16, 153615), (19, 129360), (20, 122892), (21, 117040), (22, 111720), (24, 102410), (28, 87780), (30, 81928), (33, 74480), (35, 70224), (38, 64680), (40, 61446), (42, 58520), (44, 55860), (48, 51205), (49, 50160), (55, 44688), (56, 43890), (57, 43120), (60, 40964), (66, 37240), (70, 35112), (76, 32340), (77, 31920), (80, 30723), (84, 29260), (88, 27930), (95, 25872), (98, 25080), (105, 23408), (110, 22344), (112, 21945), (114, 21560), (120, 20482), (132, 18620), (133, 18480), (140, 17556), (147, 16720), (152, 16170), (154, 15960), (165, 14896), (168, 14630), (176, 13965), (190, 12936), (196, 12540), (209, 11760), (210, 11704), (220, 11172), (228, 10780), (231, 10640), (240, 10241), (245, 10032), (264, 9310), (266, 9240), (280, 8778), (285, 8624), (294, 8360), (304, 8085), (308, 7980), (330, 7448), (336, 7315), (380, 6468), (385, 6384), (392, 6270), (399, 6160), (418, 5880), (420, 5852), (440, 5586), (456, 5390), (462, 5320), (490, 5016), (528, 4655), (532, 4620), (539, 4560), (560, 4389), (570, 4312), (588, 4180), (616, 3990), (627, 3920), (660, 3724), (665, 3696), (735, 3344), (760, 3234), (770, 3192), (784, 3135), (798, 3080), (836, 2940), (840, 2926), (880, 2793), (912, 2695), (924, 2660), (931, 2640), (980, 2508), (1045, 2352), (1064, 2310), (1078, 2280), (1140, 2156), (1155, 2128), (1176, 2090), (1232, 1995), (1254, 1960), (1320, 1862), (1330, 1848), (1463, 1680), (1470, 1672), (1520, 1617), (1540, 1596)]