20420072

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{82339}}^1$

素因数の和:82376

約数の個数: 16

約数和(自身を含む): 39523200

約数和(自身を除く): 19103128

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 82339, 164678, 329356, 658712, 2552509, 5105018, 10210036, 20420072]

約数ペア:

[(1, 20420072), (2, 10210036), (4, 5105018), (8, 2552509), (31, 658712), (62, 329356), (124, 164678), (248, 82339)]