256139086

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{21499}}^1$

素因数の和:21568

約数の個数: 32

約数和(自身を含む): 470592000

約数和(自身を除く): 214452914

約数列:

[1, 2, 7, 14, 23, 37, 46, 74, 161, 259, 322, 518, 851, 1702, 5957, 11914, 21499, 42998, 150493, 300986, 494477, 795463, 988954, 1590926, 3461339, 5568241, 6922678, 11136482, 18295649, 36591298, 128069543, 256139086]

約数ペア:

[(1, 256139086), (2, 128069543), (7, 36591298), (14, 18295649), (23, 11136482), (37, 6922678), (46, 5568241), (74, 3461339), (161, 1590926), (259, 988954), (322, 795463), (518, 494477), (851, 300986), (1702, 150493), (5957, 42998), (11914, 21499)]