28759455

素因数分解:

$3^4\times 5^1\times {\mathrm{71011}}^1$

素因数の和:71028

約数の個数: 20

約数和(自身を含む): 51554712

約数和(自身を除く): 22795257

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71011, 213033, 355055, 639099, 1065165, 1917297, 3195495, 5751891, 9586485, 28759455]

約数ペア:

[(1, 28759455), (3, 9586485), (5, 5751891), (9, 3195495), (15, 1917297), (27, 1065165), (45, 639099), (81, 355055), (135, 213033), (405, 71011)]