20123986154

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{648199}}^1$

素因数の和:648282

約数の個数: 24

約数和(自身を含む): 32599274400

約数和(自身を除く): 12475288246

約数列:

[1, 2, 19, 38, 43, 86, 361, 722, 817, 1634, 15523, 31046, 648199, 1296398, 12315781, 24631562, 27872557, 55745114, 233999839, 467999678, 529578583, 1059157166, 10061993077, 20123986154]

約数ペア:

[(1, 20123986154), (2, 10061993077), (19, 1059157166), (38, 529578583), (43, 467999678), (86, 233999839), (361, 55745114), (722, 27872557), (817, 24631562), (1634, 12315781), (15523, 1296398), (31046, 648199)]