28665825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22483}}^1$

素因数の和:22513

約数の個数: 24

約数和(自身を含む): 50184288

約数和(自身を除く): 21518463

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22483, 67449, 112415, 337245, 382211, 562075, 1146633, 1686225, 1911055, 5733165, 9555275, 28665825]

約数ペア:

[(1, 28665825), (3, 9555275), (5, 5733165), (15, 1911055), (17, 1686225), (25, 1146633), (51, 562075), (75, 382211), (85, 337245), (255, 112415), (425, 67449), (1275, 22483)]