18936990

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{7793}}^1$

素因数の和:7815

約数の個数: 48

約数和(自身を含む): 51066288

約数和(自身を除く): 32129298

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 7793, 15586, 23379, 38965, 46758, 70137, 77930, 116895, 140274, 210411, 233790, 350685, 420822, 631233, 701370, 1052055, 1262466, 1893699, 2104110, 3156165, 3787398, 6312330, 9468495, 18936990]

約数ペア:

[(1, 18936990), (2, 9468495), (3, 6312330), (5, 3787398), (6, 3156165), (9, 2104110), (10, 1893699), (15, 1262466), (18, 1052055), (27, 701370), (30, 631233), (45, 420822), (54, 350685), (81, 233790), (90, 210411), (135, 140274), (162, 116895), (243, 77930), (270, 70137), (405, 46758), (486, 38965), (810, 23379), (1215, 15586), (2430, 7793)]