81924140

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{39769}}^1$

素因数の和:39881

約数の個数: 24

約数和(自身を含む): 173715360

約数和(自身を除く): 91791220

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 39769, 79538, 159076, 198845, 397690, 795380, 4096207, 8192414, 16384828, 20481035, 40962070, 81924140]

約数ペア:

[(1, 81924140), (2, 40962070), (4, 20481035), (5, 16384828), (10, 8192414), (20, 4096207), (103, 795380), (206, 397690), (412, 198845), (515, 159076), (1030, 79538), (2060, 39769)]