81225825

素因数分解:

$3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{13709}}^1$

素因数の和:13801

約数の個数: 24

約数和(自身を含む): 136003200

約数和(自身を除く): 54777375

約数列:

[1, 3, 5, 15, 25, 75, 79, 237, 395, 1185, 1975, 5925, 13709, 41127, 68545, 205635, 342725, 1028175, 1083011, 3249033, 5415055, 16245165, 27075275, 81225825]

約数ペア:

[(1, 81225825), (3, 27075275), (5, 16245165), (15, 5415055), (25, 3249033), (75, 1083011), (79, 1028175), (237, 342725), (395, 205635), (1185, 68545), (1975, 41127), (5925, 13709)]