20882420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80317}}^1$

素因数の和:80339

約数の個数: 24

約数和(自身を含む): 47226984

約数和(自身を除く): 26344564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 80317, 160634, 321268, 401585, 803170, 1044121, 1606340, 2088242, 4176484, 5220605, 10441210, 20882420]

約数ペア:

[(1, 20882420), (2, 10441210), (4, 5220605), (5, 4176484), (10, 2088242), (13, 1606340), (20, 1044121), (26, 803170), (52, 401585), (65, 321268), (130, 160634), (260, 80317)]