8870740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6247}}^1$

素因数の和:6327

約数の個数: 24

約数和(自身を含む): 18893952

約数和(自身を除く): 10023212

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 6247, 12494, 24988, 31235, 62470, 124940, 443537, 887074, 1774148, 2217685, 4435370, 8870740]

約数ペア:

[(1, 8870740), (2, 4435370), (4, 2217685), (5, 1774148), (10, 887074), (20, 443537), (71, 124940), (142, 62470), (284, 31235), (355, 24988), (710, 12494), (1420, 6247)]