8421521420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{32390467}}^1$

素因数の和:32390489

約数の個数: 24

約数和(自身を含む): 19045595184

約数和(自身を除く): 10624073764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 32390467, 64780934, 129561868, 161952335, 323904670, 421076071, 647809340, 842152142, 1684304284, 2105380355, 4210760710, 8421521420]

約数ペア:

[(1, 8421521420), (2, 4210760710), (4, 2105380355), (5, 1684304284), (10, 842152142), (13, 647809340), (20, 421076071), (26, 323904670), (52, 161952335), (65, 129561868), (130, 64780934), (260, 32390467)]