256398340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1165447}}^1$

素因数の和:1165467

約数の個数: 24

約数和(自身を含む): 587385792

約数和(自身を除く): 330987452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1165447, 2330894, 4661788, 5827235, 11654470, 12819917, 23308940, 25639834, 51279668, 64099585, 128199170, 256398340]

約数ペア:

[(1, 256398340), (2, 128199170), (4, 64099585), (5, 51279668), (10, 25639834), (11, 23308940), (20, 12819917), (22, 11654470), (44, 5827235), (55, 4661788), (110, 2330894), (220, 1165447)]