81128975

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{383}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 104040960

約数和(自身を除く): 22911985

約数列:

[1, 5, 25, 37, 185, 229, 383, 925, 1145, 1915, 5725, 8473, 9575, 14171, 42365, 70855, 87707, 211825, 354275, 438535, 2192675, 3245159, 16225795, 81128975]

約数ペア:

[(1, 81128975), (5, 16225795), (25, 3245159), (37, 2192675), (185, 438535), (229, 354275), (383, 211825), (925, 87707), (1145, 70855), (1915, 42365), (5725, 14171), (8473, 9575)]