66805480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{238591}}^1$

素因数の和:238609

約数の個数: 32

約数和(自身を含む): 171786240

約数和(自身を除く): 104980760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 238591, 477182, 954364, 1192955, 1670137, 1908728, 2385910, 3340274, 4771820, 6680548, 8350685, 9543640, 13361096, 16701370, 33402740, 66805480]

約数ペア:

[(1, 66805480), (2, 33402740), (4, 16701370), (5, 13361096), (7, 9543640), (8, 8350685), (10, 6680548), (14, 4771820), (20, 3340274), (28, 2385910), (35, 1908728), (40, 1670137), (56, 1192955), (70, 954364), (140, 477182), (280, 238591)]