81222615

素因数分解:

$3^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1613}}^1$

素因数の和:2000

約数の個数: 32

約数和(自身を含む): 144872640

約数和(自身を除く): 63650025

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 373, 1119, 1613, 1865, 3357, 4839, 5595, 8065, 10071, 14517, 16785, 24195, 43551, 50355, 72585, 217755, 601649, 1804947, 3008245, 5414841, 9024735, 16244523, 27074205, 81222615]

約数ペア:

[(1, 81222615), (3, 27074205), (5, 16244523), (9, 9024735), (15, 5414841), (27, 3008245), (45, 1804947), (135, 601649), (373, 217755), (1119, 72585), (1613, 50355), (1865, 43551), (3357, 24195), (4839, 16785), (5595, 14517), (8065, 10071)]