81440200

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{1409}}^1$

素因数の和:1459

約数の個数: 72

約数和(自身を含む): 201284550

約数和(自身を除く): 119844350

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 289, 340, 425, 578, 680, 850, 1156, 1409, 1445, 1700, 2312, 2818, 2890, 3400, 5636, 5780, 7045, 7225, 11272, 11560, 14090, 14450, 23953, 28180, 28900, 35225, 47906, 56360, 57800, 70450, 95812, 119765, 140900, 191624, 239530, 281800, 407201, 479060, 598825, 814402, 958120, 1197650, 1628804, 2036005, 2395300, 3257608, 4072010, 4790600, 8144020, 10180025, 16288040, 20360050, 40720100, 81440200]

約数ペア:

[(1, 81440200), (2, 40720100), (4, 20360050), (5, 16288040), (8, 10180025), (10, 8144020), (17, 4790600), (20, 4072010), (25, 3257608), (34, 2395300), (40, 2036005), (50, 1628804), (68, 1197650), (85, 958120), (100, 814402), (136, 598825), (170, 479060), (200, 407201), (289, 281800), (340, 239530), (425, 191624), (578, 140900), (680, 119765), (850, 95812), (1156, 70450), (1409, 57800), (1445, 56360), (1700, 47906), (2312, 35225), (2818, 28900), (2890, 28180), (3400, 23953), (5636, 14450), (5780, 14090), (7045, 11560), (7225, 11272)]