251122540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{306247}}^1$

素因数の和:306297

約数の個数: 24

約数和(自身を含む): 540221472

約数和(自身を除く): 289098932

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 306247, 612494, 1224988, 1531235, 3062470, 6124940, 12556127, 25112254, 50224508, 62780635, 125561270, 251122540]

約数ペア:

[(1, 251122540), (2, 125561270), (4, 62780635), (5, 50224508), (10, 25112254), (20, 12556127), (41, 6124940), (82, 3062470), (164, 1531235), (205, 1224988), (410, 612494), (820, 306247)]