256631760

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1543}}^1$

素因数の和:1583

約数の個数: 320

約数和(自身を含む): 1102786560

約数和(自身を除く): 846154800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 54, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 108, 110, 112, 120, 126, 132, 135, 140, 144, 154, 165, 168, 176, 180, 189, 198, 210, 216, 220, 231, 240, 252, 264, 270, 280, 297, 308, 315, 330, 336, 360, 378, 385, 396, 420, 432, 440, 462, 495, 504, 528, 540, 560, 594, 616, 630, 660, 693, 720, 756, 770, 792, 840, 880, 924, 945, 990, 1008, 1080, 1155, 1188, 1232, 1260, 1320, 1386, 1485, 1512, 1540, 1543, 1584, 1680, 1848, 1890, 1980, 2079, 2160, 2310, 2376, 2520, 2640, 2772, 2970, 3024, 3080, 3086, 3465, 3696, 3780, 3960, 4158, 4620, 4629, 4752, 5040, 5544, 5940, 6160, 6172, 6930, 7560, 7715, 7920, 8316, 9240, 9258, 10395, 10801, 11088, 11880, 12344, 13860, 13887, 15120, 15430, 16632, 16973, 18480, 18516, 20790, 21602, 23145, 23760, 24688, 27720, 27774, 30860, 32403, 33264, 33946, 37032, 41580, 41661, 43204, 46290, 50919, 54005, 55440, 55548, 61720, 64806, 67892, 69435, 74064, 83160, 83322, 84865, 86408, 92580, 97209, 101838, 108010, 111096, 118811, 123440, 129612, 135784, 138870, 152757, 162015, 166320, 166644, 169730, 172816, 185160, 194418, 203676, 208305, 216020, 222192, 237622, 254595, 259224, 271568, 277740, 291627, 305514, 324030, 333288, 339460, 356433, 370320, 388836, 407352, 416610, 432040, 458271, 475244, 486045, 509190, 518448, 555480, 583254, 594055, 611028, 648060, 666576, 678920, 712866, 763785, 777672, 814704, 833220, 864080, 916542, 950488, 972090, 1018380, 1069299, 1110960, 1166508, 1188110, 1222056, 1296120, 1357840, 1425732, 1458135, 1527570, 1555344, 1666440, 1782165, 1833084, 1900976, 1944180, 2036760, 2138598, 2291355, 2333016, 2376220, 2444112, 2592240, 2851464, 2916270, 3055140, 3207897, 3332880, 3564330, 3666168, 3888360, 4073520, 4277196, 4582710, 4666032, 4752440, 5346495, 5702928, 5832540, 6110280, 6415794, 7128660, 7332336, 7776720, 8554392, 9165420, 9504880, 10692990, 11665080, 12220560, 12831588, 14257320, 16039485, 17108784, 18330840, 21385980, 23330160, 25663176, 28514640, 32078970, 36661680, 42771960, 51326352, 64157940, 85543920, 128315880, 256631760]

約数ペア:

[(1, 256631760), (2, 128315880), (3, 85543920), (4, 64157940), (5, 51326352), (6, 42771960), (7, 36661680), (8, 32078970), (9, 28514640), (10, 25663176), (11, 23330160), (12, 21385980), (14, 18330840), (15, 17108784), (16, 16039485), (18, 14257320), (20, 12831588), (21, 12220560), (22, 11665080), (24, 10692990), (27, 9504880), (28, 9165420), (30, 8554392), (33, 7776720), (35, 7332336), (36, 7128660), (40, 6415794), (42, 6110280), (44, 5832540), (45, 5702928), (48, 5346495), (54, 4752440), (55, 4666032), (56, 4582710), (60, 4277196), (63, 4073520), (66, 3888360), (70, 3666168), (72, 3564330), (77, 3332880), (80, 3207897), (84, 3055140), (88, 2916270), (90, 2851464), (99, 2592240), (105, 2444112), (108, 2376220), (110, 2333016), (112, 2291355), (120, 2138598), (126, 2036760), (132, 1944180), (135, 1900976), (140, 1833084), (144, 1782165), (154, 1666440), (165, 1555344), (168, 1527570), (176, 1458135), (180, 1425732), (189, 1357840), (198, 1296120), (210, 1222056), (216, 1188110), (220, 1166508), (231, 1110960), (240, 1069299), (252, 1018380), (264, 972090), (270, 950488), (280, 916542), (297, 864080), (308, 833220), (315, 814704), (330, 777672), (336, 763785), (360, 712866), (378, 678920), (385, 666576), (396, 648060), (420, 611028), (432, 594055), (440, 583254), (462, 555480), (495, 518448), (504, 509190), (528, 486045), (540, 475244), (560, 458271), (594, 432040), (616, 416610), (630, 407352), (660, 388836), (693, 370320), (720, 356433), (756, 339460), (770, 333288), (792, 324030), (840, 305514), (880, 291627), (924, 277740), (945, 271568), (990, 259224), (1008, 254595), (1080, 237622), (1155, 222192), (1188, 216020), (1232, 208305), (1260, 203676), (1320, 194418), (1386, 185160), (1485, 172816), (1512, 169730), (1540, 166644), (1543, 166320), (1584, 162015), (1680, 152757), (1848, 138870), (1890, 135784), (1980, 129612), (2079, 123440), (2160, 118811), (2310, 111096), (2376, 108010), (2520, 101838), (2640, 97209), (2772, 92580), (2970, 86408), (3024, 84865), (3080, 83322), (3086, 83160), (3465, 74064), (3696, 69435), (3780, 67892), (3960, 64806), (4158, 61720), (4620, 55548), (4629, 55440), (4752, 54005), (5040, 50919), (5544, 46290), (5940, 43204), (6160, 41661), (6172, 41580), (6930, 37032), (7560, 33946), (7715, 33264), (7920, 32403), (8316, 30860), (9240, 27774), (9258, 27720), (10395, 24688), (10801, 23760), (11088, 23145), (11880, 21602), (12344, 20790), (13860, 18516), (13887, 18480), (15120, 16973), (15430, 16632)]