81277155

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31687}}^1$

素因数の和:31720

約数の個数: 32

約数和(自身を含む): 152102400

約数和(自身を除く): 70825245

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 31687, 95061, 158435, 285183, 475305, 602053, 855549, 1425915, 1806159, 3010265, 4277745, 5418477, 9030795, 16255431, 27092385, 81277155]

約数ペア:

[(1, 81277155), (3, 27092385), (5, 16255431), (9, 9030795), (15, 5418477), (19, 4277745), (27, 3010265), (45, 1806159), (57, 1425915), (95, 855549), (135, 602053), (171, 475305), (285, 285183), (513, 158435), (855, 95061), (2565, 31687)]