201997475

素因数分解:

$5^2\times {\mathrm{101}}^1\times {\mathrm{79999}}^1$

素因数の和:80110

約数の個数: 12

約数和(自身を含む): 252960000

約数和(自身を除く): 50962525

約数列:

[1, 5, 25, 101, 505, 2525, 79999, 399995, 1999975, 8079899, 40399495, 201997475]

約数ペア:

[(1, 201997475), (5, 40399495), (25, 8079899), (101, 1999975), (505, 399995), (2525, 79999)]