20195920

素因数分解:

$2^4\times 5^1\times {\mathrm{252449}}^1$

素因数の和:252462

約数の個数: 20

約数和(自身を含む): 46955700

約数和(自身を除く): 26759780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252449, 504898, 1009796, 1262245, 2019592, 2524490, 4039184, 5048980, 10097960, 20195920]

約数ペア:

[(1, 20195920), (2, 10097960), (4, 5048980), (5, 4039184), (8, 2524490), (10, 2019592), (16, 1262245), (20, 1009796), (40, 504898), (80, 252449)]