28805680

素因数分解:

$2^4\times 5^1\times {\mathrm{360071}}^1$

素因数の和:360084

約数の個数: 20

約数和(自身を含む): 66973392

約数和(自身を除く): 38167712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 360071, 720142, 1440284, 1800355, 2880568, 3600710, 5761136, 7201420, 14402840, 28805680]

約数ペア:

[(1, 28805680), (2, 14402840), (4, 7201420), (5, 5761136), (8, 3600710), (10, 2880568), (16, 1800355), (20, 1440284), (40, 720142), (80, 360071)]