28545580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{203897}}^1$

素因数の和:203913

約数の個数: 24

約数和(自身を含む): 68509728

約数和(自身を除く): 39964148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 203897, 407794, 815588, 1019485, 1427279, 2038970, 2854558, 4077940, 5709116, 7136395, 14272790, 28545580]

約数ペア:

[(1, 28545580), (2, 14272790), (4, 7136395), (5, 5709116), (7, 4077940), (10, 2854558), (14, 2038970), (20, 1427279), (28, 1019485), (35, 815588), (70, 407794), (140, 203897)]