81120145

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{1229}}^1$

素因数の和:1584

約数の個数: 16

約数和(自身を含む): 100013760

約数和(自身を除く): 18893615

約数列:

[1, 5, 43, 215, 307, 1229, 1535, 6145, 13201, 52847, 66005, 264235, 377303, 1886515, 16224029, 81120145]

約数ペア:

[(1, 81120145), (5, 16224029), (43, 1886515), (215, 377303), (307, 264235), (1229, 66005), (1535, 52847), (6145, 13201)]