20662225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:885

約数の個数: 24

約数和(自身を含む): 27607608

約数和(自身を除く): 6945383

約数列:

[1, 5, 17, 25, 61, 85, 305, 425, 797, 1037, 1525, 3985, 5185, 13549, 19925, 25925, 48617, 67745, 243085, 338725, 826489, 1215425, 4132445, 20662225]

約数ペア:

[(1, 20662225), (5, 4132445), (17, 1215425), (25, 826489), (61, 338725), (85, 243085), (305, 67745), (425, 48617), (797, 25925), (1037, 19925), (1525, 13549), (3985, 5185)]