85999990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{2239}}^1$

素因数の和:2436

約数の個数: 32

約数和(自身を含む): 162570240

約数和(自身を除く): 76570250

約数列:

[1, 2, 5, 10, 23, 46, 115, 167, 230, 334, 835, 1670, 2239, 3841, 4478, 7682, 11195, 19205, 22390, 38410, 51497, 102994, 257485, 373913, 514970, 747826, 1869565, 3739130, 8599999, 17199998, 42999995, 85999990]

約数ペア:

[(1, 85999990), (2, 42999995), (5, 17199998), (10, 8599999), (23, 3739130), (46, 1869565), (115, 747826), (167, 514970), (230, 373913), (334, 257485), (835, 102994), (1670, 51497), (2239, 38410), (3841, 22390), (4478, 19205), (7682, 11195)]