81132560

素因数分解:

$2^4\times 5^1\times {\mathrm{1014157}}^1$

素因数の和:1014170

約数の個数: 20

約数和(自身を含む): 188633388

約数和(自身を除く): 107500828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1014157, 2028314, 4056628, 5070785, 8113256, 10141570, 16226512, 20283140, 40566280, 81132560]

約数ペア:

[(1, 81132560), (2, 40566280), (4, 20283140), (5, 16226512), (8, 10141570), (10, 8113256), (16, 5070785), (20, 4056628), (40, 2028314), (80, 1014157)]