20124140

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9769}}^1$

素因数の和:9881

約数の個数: 24

約数和(自身を含む): 42675360

約数和(自身を除く): 22551220

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9769, 19538, 39076, 48845, 97690, 195380, 1006207, 2012414, 4024828, 5031035, 10062070, 20124140]

約数ペア:

[(1, 20124140), (2, 10062070), (4, 5031035), (5, 4024828), (10, 2012414), (20, 1006207), (103, 195380), (206, 97690), (412, 48845), (515, 39076), (1030, 19538), (2060, 9769)]