81707084

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{287701}}^1$

素因数の和:287776

約数の個数: 12

約数和(自身を含む): 145001808

約数和(自身を除く): 63294724

約数列:

[1, 2, 4, 71, 142, 284, 287701, 575402, 1150804, 20426771, 40853542, 81707084]

約数ペア:

[(1, 81707084), (2, 40853542), (4, 20426771), (71, 1150804), (142, 575402), (284, 287701)]