28120815

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{7529}}^1$

素因数の和:7623

約数の個数: 24

約数和(自身を含む): 49336560

約数和(自身を除く): 21215745

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 7529, 22587, 37645, 67761, 112935, 338805, 624907, 1874721, 3124535, 5624163, 9373605, 28120815]

約数ペア:

[(1, 28120815), (3, 9373605), (5, 5624163), (9, 3124535), (15, 1874721), (45, 624907), (83, 338805), (249, 112935), (415, 67761), (747, 37645), (1245, 22587), (3735, 7529)]