80915060

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{37117}}^1$

素因数の和:37235

約数の個数: 24

約数和(自身を含む): 171485160

約数和(自身を除く): 90570100

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 37117, 74234, 148468, 185585, 371170, 742340, 4045753, 8091506, 16183012, 20228765, 40457530, 80915060]

約数ペア:

[(1, 80915060), (2, 40457530), (4, 20228765), (5, 16183012), (10, 8091506), (20, 4045753), (109, 742340), (218, 371170), (436, 185585), (545, 148468), (1090, 74234), (2180, 37117)]