180861820

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{87797}}^1$

素因数の和:87909

約数の個数: 24

約数和(自身を含む): 383501664

約数和(自身を除く): 202639844

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 87797, 175594, 351188, 438985, 877970, 1755940, 9043091, 18086182, 36172364, 45215455, 90430910, 180861820]

約数ペア:

[(1, 180861820), (2, 90430910), (4, 45215455), (5, 36172364), (10, 18086182), (20, 9043091), (103, 1755940), (206, 877970), (412, 438985), (515, 351188), (1030, 175594), (2060, 87797)]