20176491880

素因数分解:

$2^3\times 5^1\times {\mathrm{6287}}^1\times {\mathrm{80231}}^1$

素因数の和:86529

約数の個数: 32

約数和(自身を含む): 45404893440

約数和(自身を除く): 25228401560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6287, 12574, 25148, 31435, 50296, 62870, 80231, 125740, 160462, 251480, 320924, 401155, 641848, 802310, 1604620, 3209240, 504412297, 1008824594, 2017649188, 2522061485, 4035298376, 5044122970, 10088245940, 20176491880]

約数ペア:

[(1, 20176491880), (2, 10088245940), (4, 5044122970), (5, 4035298376), (8, 2522061485), (10, 2017649188), (20, 1008824594), (40, 504412297), (6287, 3209240), (12574, 1604620), (25148, 802310), (31435, 641848), (50296, 401155), (62870, 320924), (80231, 251480), (125740, 160462)]