19763620

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7213}}^1$

素因数の和:7359

約数の個数: 24

約数和(自身を含む): 41812344

約数和(自身を除く): 22048724

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7213, 14426, 28852, 36065, 72130, 144260, 988181, 1976362, 3952724, 4940905, 9881810, 19763620]

約数ペア:

[(1, 19763620), (2, 9881810), (4, 4940905), (5, 3952724), (10, 1976362), (20, 988181), (137, 144260), (274, 72130), (548, 36065), (685, 28852), (1370, 14426), (2740, 7213)]