159646640

素因数分解:

$2^4\times 5^1\times {\mathrm{1995583}}^1$

素因数の和:1995596

約数の個数: 20

約数和(自身を含む): 371178624

約数和(自身を除く): 211531984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1995583, 3991166, 7982332, 9977915, 15964664, 19955830, 31929328, 39911660, 79823320, 159646640]

約数ペア:

[(1, 159646640), (2, 79823320), (4, 39911660), (5, 31929328), (8, 19955830), (10, 15964664), (16, 9977915), (20, 7982332), (40, 3991166), (80, 1995583)]