20390312

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{82219}}^1$

素因数の和:82256

約数の個数: 16

約数和(自身を含む): 39465600

約数和(自身を除く): 19075288

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 82219, 164438, 328876, 657752, 2548789, 5097578, 10195156, 20390312]

約数ペア:

[(1, 20390312), (2, 10195156), (4, 5097578), (8, 2548789), (31, 657752), (62, 328876), (124, 164438), (248, 82219)]