256352640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:185

約数の個数: 256

約数和(自身を含む): 869529600

約数和(自身を除く): 613176960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 59, 60, 62, 64, 73, 80, 93, 96, 118, 120, 124, 128, 146, 155, 160, 177, 186, 192, 219, 236, 240, 248, 292, 295, 310, 320, 354, 365, 372, 384, 438, 465, 472, 480, 496, 584, 590, 620, 640, 708, 730, 744, 876, 885, 930, 944, 960, 992, 1095, 1168, 1180, 1240, 1416, 1460, 1488, 1752, 1770, 1829, 1860, 1888, 1920, 1984, 2190, 2263, 2336, 2360, 2480, 2832, 2920, 2976, 3504, 3540, 3658, 3720, 3776, 3968, 4307, 4380, 4526, 4672, 4720, 4960, 5487, 5664, 5840, 5952, 6789, 7008, 7080, 7316, 7440, 7552, 8614, 8760, 9052, 9145, 9344, 9440, 9920, 10974, 11315, 11328, 11680, 11904, 12921, 13578, 14016, 14160, 14632, 14880, 17228, 17520, 18104, 18290, 18880, 19840, 21535, 21948, 22630, 22656, 23360, 25842, 27156, 27435, 28032, 28320, 29264, 29760, 33945, 34456, 35040, 36208, 36580, 37760, 43070, 43896, 45260, 46720, 51684, 54312, 54870, 56640, 58528, 59520, 64605, 67890, 68912, 70080, 72416, 73160, 86140, 87792, 90520, 103368, 108624, 109740, 113280, 117056, 129210, 133517, 135780, 137824, 140160, 144832, 146320, 172280, 175584, 181040, 206736, 217248, 219480, 234112, 258420, 267034, 271560, 275648, 289664, 292640, 344560, 351168, 362080, 400551, 413472, 434496, 438960, 516840, 534068, 543120, 551296, 585280, 667585, 689120, 702336, 724160, 801102, 826944, 868992, 877920, 1033680, 1068136, 1086240, 1170560, 1335170, 1378240, 1448320, 1602204, 1653888, 1755840, 2002755, 2067360, 2136272, 2172480, 2670340, 2756480, 3204408, 3511680, 4005510, 4134720, 4272544, 4344960, 5340680, 6408816, 8011020, 8269440, 8545088, 10681360, 12817632, 16022040, 17090176, 21362720, 25635264, 32044080, 42725440, 51270528, 64088160, 85450880, 128176320, 256352640]

約数ペア:

[(1, 256352640), (2, 128176320), (3, 85450880), (4, 64088160), (5, 51270528), (6, 42725440), (8, 32044080), (10, 25635264), (12, 21362720), (15, 17090176), (16, 16022040), (20, 12817632), (24, 10681360), (30, 8545088), (31, 8269440), (32, 8011020), (40, 6408816), (48, 5340680), (59, 4344960), (60, 4272544), (62, 4134720), (64, 4005510), (73, 3511680), (80, 3204408), (93, 2756480), (96, 2670340), (118, 2172480), (120, 2136272), (124, 2067360), (128, 2002755), (146, 1755840), (155, 1653888), (160, 1602204), (177, 1448320), (186, 1378240), (192, 1335170), (219, 1170560), (236, 1086240), (240, 1068136), (248, 1033680), (292, 877920), (295, 868992), (310, 826944), (320, 801102), (354, 724160), (365, 702336), (372, 689120), (384, 667585), (438, 585280), (465, 551296), (472, 543120), (480, 534068), (496, 516840), (584, 438960), (590, 434496), (620, 413472), (640, 400551), (708, 362080), (730, 351168), (744, 344560), (876, 292640), (885, 289664), (930, 275648), (944, 271560), (960, 267034), (992, 258420), (1095, 234112), (1168, 219480), (1180, 217248), (1240, 206736), (1416, 181040), (1460, 175584), (1488, 172280), (1752, 146320), (1770, 144832), (1829, 140160), (1860, 137824), (1888, 135780), (1920, 133517), (1984, 129210), (2190, 117056), (2263, 113280), (2336, 109740), (2360, 108624), (2480, 103368), (2832, 90520), (2920, 87792), (2976, 86140), (3504, 73160), (3540, 72416), (3658, 70080), (3720, 68912), (3776, 67890), (3968, 64605), (4307, 59520), (4380, 58528), (4526, 56640), (4672, 54870), (4720, 54312), (4960, 51684), (5487, 46720), (5664, 45260), (5840, 43896), (5952, 43070), (6789, 37760), (7008, 36580), (7080, 36208), (7316, 35040), (7440, 34456), (7552, 33945), (8614, 29760), (8760, 29264), (9052, 28320), (9145, 28032), (9344, 27435), (9440, 27156), (9920, 25842), (10974, 23360), (11315, 22656), (11328, 22630), (11680, 21948), (11904, 21535), (12921, 19840), (13578, 18880), (14016, 18290), (14160, 18104), (14632, 17520), (14880, 17228)]