28138820

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{2341}}^1$

素因数の和:2951

約数の個数: 24

約数和(自身を含む): 59215128

約数和(自身を除く): 31076308

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 2341, 2404, 3005, 4682, 6010, 9364, 11705, 12020, 23410, 46820, 1406941, 2813882, 5627764, 7034705, 14069410, 28138820]

約数ペア:

[(1, 28138820), (2, 14069410), (4, 7034705), (5, 5627764), (10, 2813882), (20, 1406941), (601, 46820), (1202, 23410), (2341, 12020), (2404, 11705), (3005, 9364), (4682, 6010)]