20517360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1613}}^1$

素因数の和:1682

約数の個数: 80

約数和(自身を含む): 64844064

約数和(自身を除く): 44326704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1590, 1613, 2120, 2544, 3180, 3226, 4240, 4839, 6360, 6452, 8065, 9678, 12720, 12904, 16130, 19356, 24195, 25808, 32260, 38712, 48390, 64520, 77424, 85489, 96780, 129040, 170978, 193560, 256467, 341956, 387120, 427445, 512934, 683912, 854890, 1025868, 1282335, 1367824, 1709780, 2051736, 2564670, 3419560, 4103472, 5129340, 6839120, 10258680, 20517360]

約数ペア:

[(1, 20517360), (2, 10258680), (3, 6839120), (4, 5129340), (5, 4103472), (6, 3419560), (8, 2564670), (10, 2051736), (12, 1709780), (15, 1367824), (16, 1282335), (20, 1025868), (24, 854890), (30, 683912), (40, 512934), (48, 427445), (53, 387120), (60, 341956), (80, 256467), (106, 193560), (120, 170978), (159, 129040), (212, 96780), (240, 85489), (265, 77424), (318, 64520), (424, 48390), (530, 38712), (636, 32260), (795, 25808), (848, 24195), (1060, 19356), (1272, 16130), (1590, 12904), (1613, 12720), (2120, 9678), (2544, 8065), (3180, 6452), (3226, 6360), (4240, 4839)]