77431545

素因数分解:

$3^4\times 5^1\times {\mathrm{191189}}^1$

素因数の和:191206

約数の個数: 20

約数和(自身を含む): 138803940

約数和(自身を除く): 61372395

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 191189, 573567, 955945, 1720701, 2867835, 5162103, 8603505, 15486309, 25810515, 77431545]

約数ペア:

[(1, 77431545), (3, 25810515), (5, 15486309), (9, 8603505), (15, 5162103), (27, 2867835), (45, 1720701), (81, 955945), (135, 573567), (405, 191189)]