28262825

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 36533376

約数和(自身を除く): 8270551

約数列:

[1, 5, 25, 43, 61, 215, 305, 431, 1075, 1525, 2155, 2623, 10775, 13115, 18533, 26291, 65575, 92665, 131455, 463325, 657275, 1130513, 5652565, 28262825]

約数ペア:

[(1, 28262825), (5, 5652565), (25, 1130513), (43, 657275), (61, 463325), (215, 131455), (305, 92665), (431, 65575), (1075, 26291), (1525, 18533), (2155, 13115), (2623, 10775)]