20274370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{499}}^1$

素因数の和:762

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 18605630

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 239, 478, 499, 998, 1195, 2390, 2495, 4063, 4990, 8126, 8483, 16966, 20315, 40630, 42415, 84830, 119261, 238522, 596305, 1192610, 2027437, 4054874, 10137185, 20274370]

約数ペア:

[(1, 20274370), (2, 10137185), (5, 4054874), (10, 2027437), (17, 1192610), (34, 596305), (85, 238522), (170, 119261), (239, 84830), (478, 42415), (499, 40630), (998, 20315), (1195, 16966), (2390, 8483), (2495, 8126), (4063, 4990)]