79988720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{142837}}^1$

素因数の和:142857

約数の個数: 40

約数和(自身を含む): 212542944

約数和(自身を除く): 132554224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 142837, 285674, 571348, 714185, 999859, 1142696, 1428370, 1999718, 2285392, 2856740, 3999436, 4999295, 5713480, 7998872, 9998590, 11426960, 15997744, 19997180, 39994360, 79988720]

約数ペア:

[(1, 79988720), (2, 39994360), (4, 19997180), (5, 15997744), (7, 11426960), (8, 9998590), (10, 7998872), (14, 5713480), (16, 4999295), (20, 3999436), (28, 2856740), (35, 2285392), (40, 1999718), (56, 1428370), (70, 1142696), (80, 999859), (112, 714185), (140, 571348), (280, 285674), (560, 142837)]