81658768

素因数分解:

$2^4\times {\mathrm{173}}^1\times {\mathrm{29501}}^1$

素因数の和:29682

約数の個数: 20

約数和(自身を含む): 159133788

約数和(自身を除く): 77475020

約数列:

[1, 2, 4, 8, 16, 173, 346, 692, 1384, 2768, 29501, 59002, 118004, 236008, 472016, 5103673, 10207346, 20414692, 40829384, 81658768]

約数ペア:

[(1, 81658768), (2, 40829384), (4, 20414692), (8, 10207346), (16, 5103673), (173, 472016), (346, 236008), (692, 118004), (1384, 59002), (2768, 29501)]