79821380

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{7841}}^1$

素因数の和:8359

約数の個数: 24

約数和(自身を含む): 167975640

約数和(自身を除く): 88154260

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 7841, 10180, 15682, 31364, 39205, 78410, 156820, 3991069, 7982138, 15964276, 19955345, 39910690, 79821380]

約数ペア:

[(1, 79821380), (2, 39910690), (4, 19955345), (5, 15964276), (10, 7982138), (20, 3991069), (509, 156820), (1018, 78410), (2036, 39205), (2545, 31364), (5090, 15682), (7841, 10180)]