1663220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6397}}^1$

素因数の和:6419

約数の個数: 24

約数和(自身を含む): 3762024

約数和(自身を除く): 2098804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6397, 12794, 25588, 31985, 63970, 83161, 127940, 166322, 332644, 415805, 831610, 1663220]

約数ペア:

[(1, 1663220), (2, 831610), (4, 415805), (5, 332644), (10, 166322), (13, 127940), (20, 83161), (26, 63970), (52, 31985), (65, 25588), (130, 12794), (260, 6397)]