20045170

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5153}}^1$

素因数の和:5549

約数の個数: 16

約数和(自身を含む): 36181080

約数和(自身を除く): 16135910

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 5153, 10306, 25765, 51530, 2004517, 4009034, 10022585, 20045170]

約数ペア:

[(1, 20045170), (2, 10022585), (5, 4009034), (10, 2004517), (389, 51530), (778, 25765), (1945, 10306), (3890, 5153)]