81320260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{580859}}^1$

素因数の和:580875

約数の個数: 24

約数和(自身を含む): 195168960

約数和(自身を除く): 113848700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 580859, 1161718, 2323436, 2904295, 4066013, 5808590, 8132026, 11617180, 16264052, 20330065, 40660130, 81320260]

約数ペア:

[(1, 81320260), (2, 40660130), (4, 20330065), (5, 16264052), (7, 11617180), (10, 8132026), (14, 5808590), (20, 4066013), (28, 2904295), (35, 2323436), (70, 1161718), (140, 580859)]