28777220

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{4597}}^1$

素因数の和:4919

約数の個数: 24

約数和(自身を含む): 60638424

約数和(自身を除く): 31861204

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 4597, 6260, 9194, 18388, 22985, 45970, 91940, 1438861, 2877722, 5755444, 7194305, 14388610, 28777220]

約数ペア:

[(1, 28777220), (2, 14388610), (4, 7194305), (5, 5755444), (10, 2877722), (20, 1438861), (313, 91940), (626, 45970), (1252, 22985), (1565, 18388), (3130, 9194), (4597, 6260)]