25249515

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 17259285

約数列:

[1, 3, 5, 15, 23, 69, 115, 163, 345, 449, 489, 815, 1347, 2245, 2445, 3749, 6735, 10327, 11247, 18745, 30981, 51635, 56235, 73187, 154905, 219561, 365935, 1097805, 1683301, 5049903, 8416505, 25249515]

約数ペア:

[(1, 25249515), (3, 8416505), (5, 5049903), (15, 1683301), (23, 1097805), (69, 365935), (115, 219561), (163, 154905), (345, 73187), (449, 56235), (489, 51635), (815, 30981), (1347, 18745), (2245, 11247), (2445, 10327), (3749, 6735)]