20396180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145687}}^1$

素因数の和:145703

約数の個数: 24

約数和(自身を含む): 48951168

約数和(自身を除く): 28554988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145687, 291374, 582748, 728435, 1019809, 1456870, 2039618, 2913740, 4079236, 5099045, 10198090, 20396180]

約数ペア:

[(1, 20396180), (2, 10198090), (4, 5099045), (5, 4079236), (7, 2913740), (10, 2039618), (14, 1456870), (20, 1019809), (28, 728435), (35, 582748), (70, 291374), (140, 145687)]