20702630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{977}}^1$

素因数の和:1160

約数の個数: 32

約数和(自身を含む): 40418784

約数和(自身を除く): 19716154

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163, 326, 815, 977, 1630, 1954, 2119, 4238, 4885, 9770, 10595, 12701, 21190, 25402, 63505, 127010, 159251, 318502, 796255, 1592510, 2070263, 4140526, 10351315, 20702630]

約数ペア:

[(1, 20702630), (2, 10351315), (5, 4140526), (10, 2070263), (13, 1592510), (26, 796255), (65, 318502), (130, 159251), (163, 127010), (326, 63505), (815, 25402), (977, 21190), (1630, 12701), (1954, 10595), (2119, 9770), (4238, 4885)]