28197940

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{6211}}^1$

素因数の和:6447

約数の個数: 24

約数和(自身を含む): 59486112

約数和(自身を除く): 31288172

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4540, 6211, 12422, 24844, 31055, 62110, 124220, 1409897, 2819794, 5639588, 7049485, 14098970, 28197940]

約数ペア:

[(1, 28197940), (2, 14098970), (4, 7049485), (5, 5639588), (10, 2819794), (20, 1409897), (227, 124220), (454, 62110), (908, 31055), (1135, 24844), (2270, 12422), (4540, 6211)]