81351255

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{719}}^1$

素因数の和:1143

約数の個数: 32

約数和(自身を含む): 137548800

約数和(自身を除く): 56197545

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 397, 719, 1191, 1985, 2157, 3595, 5955, 7543, 10785, 13661, 22629, 37715, 40983, 68305, 113145, 204915, 285443, 856329, 1427215, 4281645, 5423417, 16270251, 27117085, 81351255]

約数ペア:

[(1, 81351255), (3, 27117085), (5, 16270251), (15, 5423417), (19, 4281645), (57, 1427215), (95, 856329), (285, 285443), (397, 204915), (719, 113145), (1191, 68305), (1985, 40983), (2157, 37715), (3595, 22629), (5955, 13661), (7543, 10785)]