78811731

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{709}}^1$

素因数の和:920

約数の個数: 32

約数和(自身を含む): 122688000

約数和(自身を除く): 43876269

約数列:

[1, 3, 9, 23, 27, 69, 179, 207, 537, 621, 709, 1611, 2127, 4117, 4833, 6381, 12351, 16307, 19143, 37053, 48921, 111159, 126911, 146763, 380733, 440289, 1142199, 2918953, 3426597, 8756859, 26270577, 78811731]

約数ペア:

[(1, 78811731), (3, 26270577), (9, 8756859), (23, 3426597), (27, 2918953), (69, 1142199), (179, 440289), (207, 380733), (537, 146763), (621, 126911), (709, 111159), (1611, 48921), (2127, 37053), (4117, 19143), (4833, 16307), (6381, 12351)]