20571275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 27342000

約数和(自身を除く): 6770725

約数列:

[1, 5, 17, 25, 85, 97, 425, 485, 499, 1649, 2425, 2495, 8245, 8483, 12475, 41225, 42415, 48403, 212075, 242015, 822851, 1210075, 4114255, 20571275]

約数ペア:

[(1, 20571275), (5, 4114255), (17, 1210075), (25, 822851), (85, 242015), (97, 212075), (425, 48403), (485, 42415), (499, 41225), (1649, 12475), (2425, 8483), (2495, 8245)]