19997220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{333287}}^1$

素因数の和:333299

約数の個数: 24

約数和(自身を含む): 55992384

約数和(自身を除く): 35995164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 333287, 666574, 999861, 1333148, 1666435, 1999722, 3332870, 3999444, 4999305, 6665740, 9998610, 19997220]

約数ペア:

[(1, 19997220), (2, 9998610), (3, 6665740), (4, 4999305), (5, 3999444), (6, 3332870), (10, 1999722), (12, 1666435), (15, 1333148), (20, 999861), (30, 666574), (60, 333287)]