20803548880

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{821}}^1\times {\mathrm{827}}^1$

素因数の和:2044

約数の個数: 80

約数和(自身を含む): 48612317184

約数和(自身を除く): 27808768304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 766, 821, 827, 1532, 1642, 1654, 1915, 3064, 3284, 3308, 3830, 4105, 4135, 6128, 6568, 6616, 7660, 8210, 8270, 13136, 13232, 15320, 16420, 16540, 30640, 32840, 33080, 65680, 66160, 314443, 316741, 628886, 633482, 678967, 1257772, 1266964, 1357934, 1572215, 1583705, 2515544, 2533928, 2715868, 3144430, 3167410, 3394835, 5031088, 5067856, 5431736, 6288860, 6334820, 6789670, 10863472, 12577720, 12669640, 13579340, 25155440, 25339280, 27158680, 54317360, 260044361, 520088722, 1040177444, 1300221805, 2080354888, 2600443610, 4160709776, 5200887220, 10401774440, 20803548880]

約数ペア:

[(1, 20803548880), (2, 10401774440), (4, 5200887220), (5, 4160709776), (8, 2600443610), (10, 2080354888), (16, 1300221805), (20, 1040177444), (40, 520088722), (80, 260044361), (383, 54317360), (766, 27158680), (821, 25339280), (827, 25155440), (1532, 13579340), (1642, 12669640), (1654, 12577720), (1915, 10863472), (3064, 6789670), (3284, 6334820), (3308, 6288860), (3830, 5431736), (4105, 5067856), (4135, 5031088), (6128, 3394835), (6568, 3167410), (6616, 3144430), (7660, 2715868), (8210, 2533928), (8270, 2515544), (13136, 1583705), (13232, 1572215), (15320, 1357934), (16420, 1266964), (16540, 1257772), (30640, 678967), (32840, 633482), (33080, 628886), (65680, 316741), (66160, 314443)]