90180620

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{43777}}^1$

素因数の和:43889

約数の個数: 24

約数和(自身を含む): 191222304

約数和(自身を除く): 101041684

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 43777, 87554, 175108, 218885, 437770, 875540, 4509031, 9018062, 18036124, 22545155, 45090310, 90180620]

約数ペア:

[(1, 90180620), (2, 45090310), (4, 22545155), (5, 18036124), (10, 9018062), (20, 4509031), (103, 875540), (206, 437770), (412, 218885), (515, 175108), (1030, 87554), (2060, 43777)]