19788660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109937}}^1$

素因数の和:109952

約数の個数: 36

約数和(自身を含む): 60026148

約数和(自身を除く): 40237488

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 109937, 219874, 329811, 439748, 549685, 659622, 989433, 1099370, 1319244, 1649055, 1978866, 2198740, 3298110, 3957732, 4947165, 6596220, 9894330, 19788660]

約数ペア:

[(1, 19788660), (2, 9894330), (3, 6596220), (4, 4947165), (5, 3957732), (6, 3298110), (9, 2198740), (10, 1978866), (12, 1649055), (15, 1319244), (18, 1099370), (20, 989433), (30, 659622), (36, 549685), (45, 439748), (60, 329811), (90, 219874), (180, 109937)]