256109715

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{82483}}^1$

素因数の和:82520

約数の個数: 32

約数和(自身を含む): 475107840

約数和(自身を除く): 218998125

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 82483, 247449, 412415, 742347, 1237245, 1897109, 2227041, 3711735, 5691327, 9485545, 11135205, 17073981, 28456635, 51221943, 85369905, 256109715]

約数ペア:

[(1, 256109715), (3, 85369905), (5, 51221943), (9, 28456635), (15, 17073981), (23, 11135205), (27, 9485545), (45, 5691327), (69, 3711735), (115, 2227041), (135, 1897109), (207, 1237245), (345, 742347), (621, 412415), (1035, 247449), (3105, 82483)]