1648902520

素因数分解:

$2^3\times 5^1\times {\mathrm{2251}}^1\times {\mathrm{18313}}^1$

素因数の和:20575

約数の個数: 32

約数和(自身を含む): 3711881520

約数和(自身を除く): 2062979000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2251, 4502, 9004, 11255, 18008, 18313, 22510, 36626, 45020, 73252, 90040, 91565, 146504, 183130, 366260, 732520, 41222563, 82445126, 164890252, 206112815, 329780504, 412225630, 824451260, 1648902520]

約数ペア:

[(1, 1648902520), (2, 824451260), (4, 412225630), (5, 329780504), (8, 206112815), (10, 164890252), (20, 82445126), (40, 41222563), (2251, 732520), (4502, 366260), (9004, 183130), (11255, 146504), (18008, 91565), (18313, 90040), (22510, 73252), (36626, 45020)]