28785140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13451}}^1$

素因数の和:13567

約数の個数: 24

約数和(自身を含む): 61018272

約数和(自身を除く): 32233132

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 13451, 26902, 53804, 67255, 134510, 269020, 1439257, 2878514, 5757028, 7196285, 14392570, 28785140]

約数ペア:

[(1, 28785140), (2, 14392570), (4, 7196285), (5, 5757028), (10, 2878514), (20, 1439257), (107, 269020), (214, 134510), (428, 67255), (535, 53804), (1070, 26902), (2140, 13451)]