20912750

素因数分解:

$2^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{3637}}^1$

素因数の和:3677

約数の個数: 32

約数和(自身を含む): 40862016

約数和(自身を除く): 19949266

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 125, 230, 250, 575, 1150, 2875, 3637, 5750, 7274, 18185, 36370, 83651, 90925, 167302, 181850, 418255, 454625, 836510, 909250, 2091275, 4182550, 10456375, 20912750]

約数ペア:

[(1, 20912750), (2, 10456375), (5, 4182550), (10, 2091275), (23, 909250), (25, 836510), (46, 454625), (50, 418255), (115, 181850), (125, 167302), (230, 90925), (250, 83651), (575, 36370), (1150, 18185), (2875, 7274), (3637, 5750)]