159909905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{653}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 211330944

約数和(自身を除く): 51421039

約数列:

[1, 5, 17, 43, 67, 85, 215, 335, 653, 731, 1139, 2881, 3265, 3655, 5695, 11101, 14405, 28079, 43751, 48977, 55505, 140395, 218755, 244885, 477343, 743767, 1881293, 2386715, 3718835, 9406465, 31981981, 159909905]

約数ペア:

[(1, 159909905), (5, 31981981), (17, 9406465), (43, 3718835), (67, 2386715), (85, 1881293), (215, 743767), (335, 477343), (653, 244885), (731, 218755), (1139, 140395), (2881, 55505), (3265, 48977), (3655, 43751), (5695, 28079), (11101, 14405)]