805494290

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{5701}}^1$

素因数の和:5978

約数の個数: 32

約数和(自身を含む): 1477958400

約数和(自身を除く): 672464110

約数列:

[1, 2, 5, 10, 71, 142, 199, 355, 398, 710, 995, 1990, 5701, 11402, 14129, 28258, 28505, 57010, 70645, 141290, 404771, 809542, 1134499, 2023855, 2268998, 4047710, 5672495, 11344990, 80549429, 161098858, 402747145, 805494290]

約数ペア:

[(1, 805494290), (2, 402747145), (5, 161098858), (10, 80549429), (71, 11344990), (142, 5672495), (199, 4047710), (355, 2268998), (398, 2023855), (710, 1134499), (995, 809542), (1990, 404771), (5701, 141290), (11402, 70645), (14129, 57010), (28258, 28505)]