1641820

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{797}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 3485664

約数和(自身を除く): 1843844

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 797, 1030, 1594, 2060, 3188, 3985, 7970, 15940, 82091, 164182, 328364, 410455, 820910, 1641820]

約数ペア:

[(1, 1641820), (2, 820910), (4, 410455), (5, 328364), (10, 164182), (20, 82091), (103, 15940), (206, 7970), (412, 3985), (515, 3188), (797, 2060), (1030, 1594)]