388595920

素因数分解:

$2^4\times 5^1\times {\mathrm{4857449}}^1$

素因数の和:4857462

約数の個数: 20

約数和(自身を含む): 903485700

約数和(自身を除く): 514889780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4857449, 9714898, 19429796, 24287245, 38859592, 48574490, 77719184, 97148980, 194297960, 388595920]

約数ペア:

[(1, 388595920), (2, 194297960), (4, 97148980), (5, 77719184), (8, 48574490), (10, 38859592), (16, 24287245), (20, 19429796), (40, 9714898), (80, 4857449)]