28866525

素因数分解:

$3^1\times 5^2\times {\mathrm{557}}^1\times {\mathrm{691}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 47880864

約数和(自身を除く): 19014339

約数列:

[1, 3, 5, 15, 25, 75, 557, 691, 1671, 2073, 2785, 3455, 8355, 10365, 13925, 17275, 41775, 51825, 384887, 1154661, 1924435, 5773305, 9622175, 28866525]

約数ペア:

[(1, 28866525), (3, 9622175), (5, 5773305), (15, 1924435), (25, 1154661), (75, 384887), (557, 51825), (691, 41775), (1671, 17275), (2073, 13925), (2785, 10365), (3455, 8355)]