81320045

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1\times {\mathrm{587}}^1$

素因数の和:964

約数の個数: 16

約数和(自身を含む): 99066240

約数和(自身を除く): 17746195

約数列:

[1, 5, 103, 269, 515, 587, 1345, 2935, 27707, 60461, 138535, 157903, 302305, 789515, 16264009, 81320045]

約数ペア:

[(1, 81320045), (5, 16264009), (103, 789515), (269, 302305), (515, 157903), (587, 138535), (1345, 60461), (2935, 27707)]