78171405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1289}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 135233280

約数和(自身を除く): 57061875

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 311, 933, 1289, 1555, 3867, 4043, 4665, 6445, 12129, 16757, 19335, 20215, 50271, 60645, 83785, 251355, 400879, 1202637, 2004395, 5211427, 6013185, 15634281, 26057135, 78171405]

約数ペア:

[(1, 78171405), (3, 26057135), (5, 15634281), (13, 6013185), (15, 5211427), (39, 2004395), (65, 1202637), (195, 400879), (311, 251355), (933, 83785), (1289, 60645), (1555, 50271), (3867, 20215), (4043, 19335), (4665, 16757), (6445, 12129)]