123715980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{687311}}^1$

素因数の和:687326

約数の個数: 36

約数和(自身を含む): 375272352

約数和(自身を除く): 251556372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 687311, 1374622, 2061933, 2749244, 3436555, 4123866, 6185799, 6873110, 8247732, 10309665, 12371598, 13746220, 20619330, 24743196, 30928995, 41238660, 61857990, 123715980]

約数ペア:

[(1, 123715980), (2, 61857990), (3, 41238660), (4, 30928995), (5, 24743196), (6, 20619330), (9, 13746220), (10, 12371598), (12, 10309665), (15, 8247732), (18, 6873110), (20, 6185799), (30, 4123866), (36, 3436555), (45, 2749244), (60, 2061933), (90, 1374622), (180, 687311)]