40290790

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{51001}}^1$

素因数の和:51087

約数の個数: 16

約数和(自身を含む): 73442880

約数和(自身を除く): 33152090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 51001, 102002, 255005, 510010, 4029079, 8058158, 20145395, 40290790]

約数ペア:

[(1, 40290790), (2, 20145395), (5, 8058158), (10, 4029079), (79, 510010), (158, 255005), (395, 102002), (790, 51001)]