40131778

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{1559}}^1$

素因数の和:1833

約数の個数: 16

約数和(自身を含む): 61513920

約数和(自身を除く): 21382142

約数列:

[1, 2, 61, 122, 211, 422, 1559, 3118, 12871, 25742, 95099, 190198, 328949, 657898, 20065889, 40131778]

約数ペア:

[(1, 40131778), (2, 20065889), (61, 657898), (122, 328949), (211, 190198), (422, 95099), (1559, 25742), (3118, 12871)]