28364405

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1571}}^1$

素因数の和:1756

約数の個数: 16

約数和(自身を含む): 35766144

約数和(自身を除く): 7401739

約数列:

[1, 5, 23, 115, 157, 785, 1571, 3611, 7855, 18055, 36133, 180665, 246647, 1233235, 5672881, 28364405]

約数ペア:

[(1, 28364405), (5, 5672881), (23, 1233235), (115, 246647), (157, 180665), (785, 36133), (1571, 18055), (3611, 7855)]