20256615

素因数分解:

$3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{829}}^1$

素因数の和:1024

約数の個数: 32

約数和(自身を含む): 36254400

約数和(自身を除く): 15997785

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 181, 543, 829, 905, 1629, 2487, 2715, 4145, 4887, 7461, 8145, 12435, 22383, 24435, 37305, 111915, 150049, 450147, 750245, 1350441, 2250735, 4051323, 6752205, 20256615]

約数ペア:

[(1, 20256615), (3, 6752205), (5, 4051323), (9, 2250735), (15, 1350441), (27, 750245), (45, 450147), (135, 150049), (181, 111915), (543, 37305), (829, 24435), (905, 22383), (1629, 12435), (2487, 8145), (2715, 7461), (4145, 4887)]