81145990

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{23251}}^1$

素因数の和:23607

約数の個数: 16

約数和(自身を含む): 146487600

約数和(自身を除く): 65341610

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 23251, 46502, 116255, 232510, 8114599, 16229198, 40572995, 81145990]

約数ペア:

[(1, 81145990), (2, 40572995), (5, 16229198), (10, 8114599), (349, 232510), (698, 116255), (1745, 46502), (3490, 23251)]