201025720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{1039}}^1$

素因数の和:1748

約数の個数: 64

約数和(自身を含む): 518169600

約数和(自身を除く): 317143880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 691, 1039, 1382, 2078, 2764, 3455, 4156, 4837, 5195, 5528, 6910, 7273, 8312, 9674, 10390, 13820, 14546, 19348, 20780, 24185, 27640, 29092, 36365, 38696, 41560, 48370, 58184, 72730, 96740, 145460, 193480, 290920, 717949, 1435898, 2871796, 3589745, 5025643, 5743592, 7179490, 10051286, 14358980, 20102572, 25128215, 28717960, 40205144, 50256430, 100512860, 201025720]

約数ペア:

[(1, 201025720), (2, 100512860), (4, 50256430), (5, 40205144), (7, 28717960), (8, 25128215), (10, 20102572), (14, 14358980), (20, 10051286), (28, 7179490), (35, 5743592), (40, 5025643), (56, 3589745), (70, 2871796), (140, 1435898), (280, 717949), (691, 290920), (1039, 193480), (1382, 145460), (2078, 96740), (2764, 72730), (3455, 58184), (4156, 48370), (4837, 41560), (5195, 38696), (5528, 36365), (6910, 29092), (7273, 27640), (8312, 24185), (9674, 20780), (10390, 19348), (13820, 14546)]