28214740

素因数分解:

$2^2\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{1279}}^1$

素因数の和:2391

約数の個数: 24

約数和(自身を含む): 59351040

約数和(自身を除く): 31136300

約数列:

[1, 2, 4, 5, 10, 20, 1103, 1279, 2206, 2558, 4412, 5116, 5515, 6395, 11030, 12790, 22060, 25580, 1410737, 2821474, 5642948, 7053685, 14107370, 28214740]

約数ペア:

[(1, 28214740), (2, 14107370), (4, 7053685), (5, 5642948), (10, 2821474), (20, 1410737), (1103, 25580), (1279, 22060), (2206, 12790), (2558, 11030), (4412, 6395), (5116, 5515)]