1881815

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 2608848

約数和(自身を除く): 727033

約数列:

[1, 5, 13, 17, 65, 85, 131, 169, 221, 655, 845, 1105, 1703, 2227, 2873, 8515, 11135, 14365, 22139, 28951, 110695, 144755, 376363, 1881815]

約数ペア:

[(1, 1881815), (5, 376363), (13, 144755), (17, 110695), (65, 28951), (85, 22139), (131, 14365), (169, 11135), (221, 8515), (655, 2873), (845, 2227), (1105, 1703)]