2021025725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{13681}}^1$

素因数の和:14021

約数の個数: 24

約数和(自身を含む): 2646646080

約数和(自身を除く): 625620355

約数列:

[1, 5, 19, 25, 95, 311, 475, 1555, 5909, 7775, 13681, 29545, 68405, 147725, 259939, 342025, 1299695, 4254791, 6498475, 21273955, 80841029, 106369775, 404205145, 2021025725]

約数ペア:

[(1, 2021025725), (5, 404205145), (19, 106369775), (25, 80841029), (95, 21273955), (311, 6498475), (475, 4254791), (1555, 1299695), (5909, 342025), (7775, 259939), (13681, 147725), (29545, 68405)]