28486475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{691}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 37841328

約数和(自身を除く): 9354853

約数列:

[1, 5, 17, 25, 85, 97, 425, 485, 691, 1649, 2425, 3455, 8245, 11747, 17275, 41225, 58735, 67027, 293675, 335135, 1139459, 1675675, 5697295, 28486475]

約数ペア:

[(1, 28486475), (5, 5697295), (17, 1675675), (25, 1139459), (85, 335135), (97, 293675), (425, 67027), (485, 58735), (691, 41225), (1649, 17275), (2425, 11747), (3455, 8245)]