199173615

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{9887}}^1$

素因数の和:9991

約数の個数: 32

約数和(自身を含む): 341729280

約数和(自身を除く): 142555665

約数列:

[1, 3, 5, 15, 17, 51, 79, 85, 237, 255, 395, 1185, 1343, 4029, 6715, 9887, 20145, 29661, 49435, 148305, 168079, 504237, 781073, 840395, 2343219, 2521185, 3905365, 11716095, 13278241, 39834723, 66391205, 199173615]

約数ペア:

[(1, 199173615), (3, 66391205), (5, 39834723), (15, 13278241), (17, 11716095), (51, 3905365), (79, 2521185), (85, 2343219), (237, 840395), (255, 781073), (395, 504237), (1185, 168079), (1343, 148305), (4029, 49435), (6715, 29661), (9887, 20145)]