6405680

素因数分解:

$2^4\times 5^1\times {\mathrm{80071}}^1$

素因数の和:80084

約数の個数: 20

約数和(自身を含む): 14893392

約数和(自身を除く): 8487712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 80071, 160142, 320284, 400355, 640568, 800710, 1281136, 1601420, 3202840, 6405680]

約数ペア:

[(1, 6405680), (2, 3202840), (4, 1601420), (5, 1281136), (8, 800710), (10, 640568), (16, 400355), (20, 320284), (40, 160142), (80, 80071)]