403730920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 923400000

約数和(自身を除く): 519669080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 179, 226, 358, 452, 499, 565, 716, 895, 904, 998, 1130, 1432, 1790, 1996, 2260, 2495, 3580, 3992, 4520, 4990, 7160, 9980, 19960, 20227, 40454, 56387, 80908, 89321, 101135, 112774, 161816, 178642, 202270, 225548, 281935, 357284, 404540, 446605, 451096, 563870, 714568, 809080, 893210, 1127740, 1786420, 2255480, 3572840, 10093273, 20186546, 40373092, 50466365, 80746184, 100932730, 201865460, 403730920]

約数ペア:

[(1, 403730920), (2, 201865460), (4, 100932730), (5, 80746184), (8, 50466365), (10, 40373092), (20, 20186546), (40, 10093273), (113, 3572840), (179, 2255480), (226, 1786420), (358, 1127740), (452, 893210), (499, 809080), (565, 714568), (716, 563870), (895, 451096), (904, 446605), (998, 404540), (1130, 357284), (1432, 281935), (1790, 225548), (1996, 202270), (2260, 178642), (2495, 161816), (3580, 112774), (3992, 101135), (4520, 89321), (4990, 80908), (7160, 56387), (9980, 40454), (19960, 20227)]