28405485

素因数分解:

$3^6\times 5^1\times {\mathrm{7793}}^1$

素因数の和:7816

約数の個数: 28

約数和(自身を含む): 51113052

約数和(自身を除く): 22707567

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 7793, 23379, 38965, 70137, 116895, 210411, 350685, 631233, 1052055, 1893699, 3156165, 5681097, 9468495, 28405485]

約数ペア:

[(1, 28405485), (3, 9468495), (5, 5681097), (9, 3156165), (15, 1893699), (27, 1052055), (45, 631233), (81, 350685), (135, 210411), (243, 116895), (405, 70137), (729, 38965), (1215, 23379), (3645, 7793)]