4065815990

素因数分解:

$2^1\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{398219}}^1$

素因数の和:399247

約数の個数: 16

約数和(自身を含む): 7325655120

約数和(自身を除く): 3259839130

約数列:

[1, 2, 5, 10, 1021, 2042, 5105, 10210, 398219, 796438, 1991095, 3982190, 406581599, 813163198, 2032907995, 4065815990]

約数ペア:

[(1, 4065815990), (2, 2032907995), (5, 813163198), (10, 406581599), (1021, 3982190), (2042, 1991095), (5105, 796438), (10210, 398219)]