20871036176

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{69857}}^1$

素因数の和:70199

約数の個数: 40

約数和(自身を含む): 41163686784

約数和(自身を除く): 20292650608

約数列:

[1, 2, 4, 8, 16, 71, 142, 263, 284, 526, 568, 1052, 1136, 2104, 4208, 18673, 37346, 69857, 74692, 139714, 149384, 279428, 298768, 558856, 1117712, 4959847, 9919694, 18372391, 19839388, 36744782, 39678776, 73489564, 79357552, 146979128, 293958256, 1304439761, 2608879522, 5217759044, 10435518088, 20871036176]

約数ペア:

[(1, 20871036176), (2, 10435518088), (4, 5217759044), (8, 2608879522), (16, 1304439761), (71, 293958256), (142, 146979128), (263, 79357552), (284, 73489564), (526, 39678776), (568, 36744782), (1052, 19839388), (1136, 18372391), (2104, 9919694), (4208, 4959847), (18673, 1117712), (37346, 558856), (69857, 298768), (74692, 279428), (139714, 149384)]