28105820

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1933}}^1$

素因数の和:2669

約数の個数: 24

約数和(自身を含む): 59133984

約数和(自身を除く): 31028164

約数列:

[1, 2, 4, 5, 10, 20, 727, 1454, 1933, 2908, 3635, 3866, 7270, 7732, 9665, 14540, 19330, 38660, 1405291, 2810582, 5621164, 7026455, 14052910, 28105820]

約数ペア:

[(1, 28105820), (2, 14052910), (4, 7026455), (5, 5621164), (10, 2810582), (20, 1405291), (727, 38660), (1454, 19330), (1933, 14540), (2908, 9665), (3635, 7732), (3866, 7270)]