81765

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:113

約数の個数: 24

約数和(自身を含む): 149760

約数和(自身を除く): 67995

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 79, 115, 207, 237, 345, 395, 711, 1035, 1185, 1817, 3555, 5451, 9085, 16353, 27255, 81765]

約数ペア:

[(1, 81765), (3, 27255), (5, 16353), (9, 9085), (15, 5451), (23, 3555), (45, 1817), (69, 1185), (79, 1035), (115, 711), (207, 395), (237, 345)]