20213115920

素因数分解:

$2^4\times 5^1\times {\mathrm{252663949}}^1$

素因数の和:252663962

約数の個数: 20

約数和(自身を含む): 46995494700

約数和(自身を除く): 26782378780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252663949, 505327898, 1010655796, 1263319745, 2021311592, 2526639490, 4042623184, 5053278980, 10106557960, 20213115920]

約数ペア:

[(1, 20213115920), (2, 10106557960), (4, 5053278980), (5, 4042623184), (8, 2526639490), (10, 2021311592), (16, 1263319745), (20, 1010655796), (40, 505327898), (80, 252663949)]