157620520

素因数分解:

$2^3\times 5^1\times {\mathrm{3940513}}^1$

素因数の和:3940524

約数の個数: 16

約数和(自身を含む): 354646260

約数和(自身を除く): 197025740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3940513, 7881026, 15762052, 19702565, 31524104, 39405130, 78810260, 157620520]

約数ペア:

[(1, 157620520), (2, 78810260), (4, 39405130), (5, 31524104), (8, 19702565), (10, 15762052), (20, 7881026), (40, 3940513)]