91721980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{655157}}^1$

素因数の和:655173

約数の個数: 24

約数和(自身を含む): 220133088

約数和(自身を除く): 128411108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 655157, 1310314, 2620628, 3275785, 4586099, 6551570, 9172198, 13103140, 18344396, 22930495, 45860990, 91721980]

約数ペア:

[(1, 91721980), (2, 45860990), (4, 22930495), (5, 18344396), (7, 13103140), (10, 9172198), (14, 6551570), (20, 4586099), (28, 3275785), (35, 2620628), (70, 1310314), (140, 655157)]