20157475

素因数分解:

$5^2\times {\mathrm{13}}^3\times {\mathrm{367}}^1$

素因数の和:416

約数の個数: 24

約数和(自身を含む): 27151040

約数和(自身を除く): 6993565

約数列:

[1, 5, 13, 25, 65, 169, 325, 367, 845, 1835, 2197, 4225, 4771, 9175, 10985, 23855, 54925, 62023, 119275, 310115, 806299, 1550575, 4031495, 20157475]

約数ペア:

[(1, 20157475), (5, 4031495), (13, 1550575), (25, 806299), (65, 310115), (169, 119275), (325, 62023), (367, 54925), (845, 23855), (1835, 10985), (2197, 9175), (4225, 4771)]