216256405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{5903}}^1$

素因数の和:6356

約数の個数: 16

約数和(自身を含む): 275457024

約数和(自身を除く): 59200619

約数列:

[1, 5, 17, 85, 431, 2155, 5903, 7327, 29515, 36635, 100351, 501755, 2544193, 12720965, 43251281, 216256405]

約数ペア:

[(1, 216256405), (5, 43251281), (17, 12720965), (85, 2544193), (431, 501755), (2155, 100351), (5903, 36635), (7327, 29515)]