20809156792

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{311}}^1\times {\mathrm{105871}}^1$

素因数の和:106267

約数の個数: 32

約数和(自身を含む): 39638476800

約数和(自身を除く): 18829320008

約数列:

[1, 2, 4, 8, 79, 158, 311, 316, 622, 632, 1244, 2488, 24569, 49138, 98276, 105871, 196552, 211742, 423484, 846968, 8363809, 16727618, 32925881, 33455236, 65851762, 66910472, 131703524, 263407048, 2601144599, 5202289198, 10404578396, 20809156792]

約数ペア:

[(1, 20809156792), (2, 10404578396), (4, 5202289198), (8, 2601144599), (79, 263407048), (158, 131703524), (311, 66910472), (316, 65851762), (622, 33455236), (632, 32925881), (1244, 16727618), (2488, 8363809), (24569, 846968), (49138, 423484), (98276, 211742), (105871, 196552)]