400555730

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{564163}}^1$

素因数の和:564241

約数の個数: 16

約数和(自身を含む): 731156544

約数和(自身を除く): 330600814

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 564163, 1128326, 2820815, 5641630, 40055573, 80111146, 200277865, 400555730]

約数ペア:

[(1, 400555730), (2, 200277865), (5, 80111146), (10, 40055573), (71, 5641630), (142, 2820815), (355, 1128326), (710, 564163)]