128798205

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{505091}}^1$

素因数の和:505116

約数の個数: 16

約数和(自身を含む): 218199744

約数和(自身を除く): 89401539

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 505091, 1515273, 2525455, 7576365, 8586547, 25759641, 42932735, 128798205]

約数ペア:

[(1, 128798205), (3, 42932735), (5, 25759641), (15, 8586547), (17, 7576365), (51, 2525455), (85, 1515273), (255, 505091)]