28564245

素因数分解:

$3^4\times 5^1\times {\mathrm{70529}}^1$

素因数の和:70546

約数の個数: 20

約数和(自身を含む): 51204780

約数和(自身を除く): 22640535

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70529, 211587, 352645, 634761, 1057935, 1904283, 3173805, 5712849, 9521415, 28564245]

約数ペア:

[(1, 28564245), (3, 9521415), (5, 5712849), (9, 3173805), (15, 1904283), (27, 1057935), (45, 634761), (81, 352645), (135, 211587), (405, 70529)]