208790720

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:346

約数の個数: 112

約数和(自身を含む): 521208000

約数和(自身を除く): 312417280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 145, 149, 151, 160, 232, 290, 298, 302, 320, 464, 580, 596, 604, 745, 755, 928, 1160, 1192, 1208, 1490, 1510, 1856, 2320, 2384, 2416, 2980, 3020, 4321, 4379, 4640, 4768, 4832, 5960, 6040, 8642, 8758, 9280, 9536, 9664, 11920, 12080, 17284, 17516, 21605, 21895, 22499, 23840, 24160, 34568, 35032, 43210, 43790, 44998, 47680, 48320, 69136, 70064, 86420, 87580, 89996, 112495, 138272, 140128, 172840, 175160, 179992, 224990, 276544, 280256, 345680, 350320, 359984, 449980, 652471, 691360, 700640, 719968, 899960, 1304942, 1382720, 1401280, 1439936, 1799920, 2609884, 3262355, 3599840, 5219768, 6524710, 7199680, 10439536, 13049420, 20879072, 26098840, 41758144, 52197680, 104395360, 208790720]

約数ペア:

[(1, 208790720), (2, 104395360), (4, 52197680), (5, 41758144), (8, 26098840), (10, 20879072), (16, 13049420), (20, 10439536), (29, 7199680), (32, 6524710), (40, 5219768), (58, 3599840), (64, 3262355), (80, 2609884), (116, 1799920), (145, 1439936), (149, 1401280), (151, 1382720), (160, 1304942), (232, 899960), (290, 719968), (298, 700640), (302, 691360), (320, 652471), (464, 449980), (580, 359984), (596, 350320), (604, 345680), (745, 280256), (755, 276544), (928, 224990), (1160, 179992), (1192, 175160), (1208, 172840), (1490, 140128), (1510, 138272), (1856, 112495), (2320, 89996), (2384, 87580), (2416, 86420), (2980, 70064), (3020, 69136), (4321, 48320), (4379, 47680), (4640, 44998), (4768, 43790), (4832, 43210), (5960, 35032), (6040, 34568), (8642, 24160), (8758, 23840), (9280, 22499), (9536, 21895), (9664, 21605), (11920, 17516), (12080, 17284)]