28687945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{40123}}^1$

素因数の和:40152

約数の個数: 16

約数和(自身を含む): 40444992

約数和(自身を除く): 11757047

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 40123, 200615, 441353, 521599, 2206765, 2607995, 5737589, 28687945]

約数ペア:

[(1, 28687945), (5, 5737589), (11, 2607995), (13, 2206765), (55, 521599), (65, 441353), (143, 200615), (715, 40123)]