81378765

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139109}}^1$

素因数の和:139133

約数の個数: 24

約数和(自身を含む): 151908120

約数和(自身を除く): 70529355

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 139109, 417327, 695545, 1251981, 1808417, 2086635, 5425251, 6259905, 9042085, 16275753, 27126255, 81378765]

約数ペア:

[(1, 81378765), (3, 27126255), (5, 16275753), (9, 9042085), (13, 6259905), (15, 5425251), (39, 2086635), (45, 1808417), (65, 1251981), (117, 695545), (195, 417327), (585, 139109)]