20642570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1637}}^1$

素因数の和:1754

約数の個数: 32

約数和(自身を含む): 40452048

約数和(自身を除く): 19809478

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 485, 970, 1261, 1637, 2522, 3274, 6305, 8185, 12610, 16370, 21281, 42562, 106405, 158789, 212810, 317578, 793945, 1587890, 2064257, 4128514, 10321285, 20642570]

約数ペア:

[(1, 20642570), (2, 10321285), (5, 4128514), (10, 2064257), (13, 1587890), (26, 793945), (65, 317578), (97, 212810), (130, 158789), (194, 106405), (485, 42562), (970, 21281), (1261, 16370), (1637, 12610), (2522, 8185), (3274, 6305)]