87591920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{84223}}^1$

素因数の和:84249

約数の個数: 40

約数和(自身を含む): 219319296

約数和(自身を除く): 131727376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 84223, 168446, 336892, 421115, 673784, 842230, 1094899, 1347568, 1684460, 2189798, 3368920, 4379596, 5474495, 6737840, 8759192, 10948990, 17518384, 21897980, 43795960, 87591920]

約数ペア:

[(1, 87591920), (2, 43795960), (4, 21897980), (5, 17518384), (8, 10948990), (10, 8759192), (13, 6737840), (16, 5474495), (20, 4379596), (26, 3368920), (40, 2189798), (52, 1684460), (65, 1347568), (80, 1094899), (104, 842230), (130, 673784), (208, 421115), (260, 336892), (520, 168446), (1040, 84223)]