64580580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{719}}^1$

素因数の和:1233

約数の個数: 72

約数和(自身を含む): 196560000

約数和(自身を除く): 131979420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 499, 719, 998, 1438, 1497, 1996, 2157, 2495, 2876, 2994, 3595, 4314, 4491, 4990, 5988, 6471, 7190, 7485, 8628, 8982, 9980, 10785, 12942, 14380, 14970, 17964, 21570, 22455, 25884, 29940, 32355, 43140, 44910, 64710, 89820, 129420, 358781, 717562, 1076343, 1435124, 1793905, 2152686, 3229029, 3587810, 4305372, 5381715, 6458058, 7175620, 10763430, 12916116, 16145145, 21526860, 32290290, 64580580]

約数ペア:

[(1, 64580580), (2, 32290290), (3, 21526860), (4, 16145145), (5, 12916116), (6, 10763430), (9, 7175620), (10, 6458058), (12, 5381715), (15, 4305372), (18, 3587810), (20, 3229029), (30, 2152686), (36, 1793905), (45, 1435124), (60, 1076343), (90, 717562), (180, 358781), (499, 129420), (719, 89820), (998, 64710), (1438, 44910), (1497, 43140), (1996, 32355), (2157, 29940), (2495, 25884), (2876, 22455), (2994, 21570), (3595, 17964), (4314, 14970), (4491, 14380), (4990, 12942), (5988, 10785), (6471, 9980), (7190, 8982), (7485, 8628)]