20402325

素因数分解:

$3^2\times 5^2\times {\mathrm{90677}}^1$

素因数の和:90693

約数の個数: 18

約数和(自身を含む): 36543234

約数和(自身を除く): 16140909

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90677, 272031, 453385, 816093, 1360155, 2266925, 4080465, 6800775, 20402325]

約数ペア:

[(1, 20402325), (3, 6800775), (5, 4080465), (9, 2266925), (15, 1360155), (25, 816093), (45, 453385), (75, 272031), (225, 90677)]