977777420

素因数分解:

$2^2\times 5^1\times {\mathrm{2423}}^1\times {\mathrm{20177}}^1$

素因数の和:22609

約数の個数: 24

約数和(自身を含む): 2054281824

約数和(自身を除く): 1076504404

約数列:

[1, 2, 4, 5, 10, 20, 2423, 4846, 9692, 12115, 20177, 24230, 40354, 48460, 80708, 100885, 201770, 403540, 48888871, 97777742, 195555484, 244444355, 488888710, 977777420]

約数ペア:

[(1, 977777420), (2, 488888710), (4, 244444355), (5, 195555484), (10, 97777742), (20, 48888871), (2423, 403540), (4846, 201770), (9692, 100885), (12115, 80708), (20177, 48460), (24230, 40354)]