1999657360

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{190807}}^1$

素因数の和:190951

約数の個数: 40

約数和(自身を含む): 4684718016

約数和(自身を除く): 2685060656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 190807, 381614, 763228, 954035, 1526456, 1908070, 3052912, 3816140, 7632280, 15264560, 24995717, 49991434, 99982868, 124978585, 199965736, 249957170, 399931472, 499914340, 999828680, 1999657360]

約数ペア:

[(1, 1999657360), (2, 999828680), (4, 499914340), (5, 399931472), (8, 249957170), (10, 199965736), (16, 124978585), (20, 99982868), (40, 49991434), (80, 24995717), (131, 15264560), (262, 7632280), (524, 3816140), (655, 3052912), (1048, 1908070), (1310, 1526456), (2096, 954035), (2620, 763228), (5240, 381614), (10480, 190807)]