40840144

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{82339}}^1$

素因数の和:82378

約数の個数: 20

約数和(自身を含む): 81681280

約数和(自身を除く): 40841136

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 82339, 164678, 329356, 658712, 1317424, 2552509, 5105018, 10210036, 20420072, 40840144]

約数ペア:

[(1, 40840144), (2, 20420072), (4, 10210036), (8, 5105018), (16, 2552509), (31, 1317424), (62, 658712), (124, 329356), (248, 164678), (496, 82339)]