80068780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{363949}}^1$

素因数の和:363969

約数の個数: 24

約数和(自身を含む): 183430800

約数和(自身を除く): 103362020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 363949, 727898, 1455796, 1819745, 3639490, 4003439, 7278980, 8006878, 16013756, 20017195, 40034390, 80068780]

約数ペア:

[(1, 80068780), (2, 40034390), (4, 20017195), (5, 16013756), (10, 8006878), (11, 7278980), (20, 4003439), (22, 3639490), (44, 1819745), (55, 1455796), (110, 727898), (220, 363949)]