81387976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{1579}}^1$

素因数の和:1981

約数の個数: 32

約数和(自身を含む): 162108000

約数和(自身を除く): 80720024

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 379, 758, 1516, 1579, 3032, 3158, 6316, 6443, 12632, 12886, 25772, 26843, 51544, 53686, 107372, 214744, 598441, 1196882, 2393764, 4787528, 10173497, 20346994, 40693988, 81387976]

約数ペア:

[(1, 81387976), (2, 40693988), (4, 20346994), (8, 10173497), (17, 4787528), (34, 2393764), (68, 1196882), (136, 598441), (379, 214744), (758, 107372), (1516, 53686), (1579, 51544), (3032, 26843), (3158, 25772), (6316, 12886), (6443, 12632)]