28540220

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{2837}}^1$

素因数の和:3349

約数の個数: 24

約数和(自身を含む): 60074784

約数和(自身を除く): 31534564

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 2837, 5030, 5674, 10060, 11348, 14185, 28370, 56740, 1427011, 2854022, 5708044, 7135055, 14270110, 28540220]

約数ペア:

[(1, 28540220), (2, 14270110), (4, 7135055), (5, 5708044), (10, 2854022), (20, 1427011), (503, 56740), (1006, 28370), (2012, 14185), (2515, 11348), (2837, 10060), (5030, 5674)]