123563840

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20323}}^1$

素因数の和:20359

約数の個数: 56

約数和(自身を含む): 309737760

約数和(自身を除く): 186173920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 20323, 40646, 81292, 101615, 162584, 203230, 325168, 386137, 406460, 650336, 772274, 812920, 1300672, 1544548, 1625840, 1930685, 3089096, 3251680, 3861370, 6178192, 6503360, 7722740, 12356384, 15445480, 24712768, 30890960, 61781920, 123563840]

約数ペア:

[(1, 123563840), (2, 61781920), (4, 30890960), (5, 24712768), (8, 15445480), (10, 12356384), (16, 7722740), (19, 6503360), (20, 6178192), (32, 3861370), (38, 3251680), (40, 3089096), (64, 1930685), (76, 1625840), (80, 1544548), (95, 1300672), (152, 812920), (160, 772274), (190, 650336), (304, 406460), (320, 386137), (380, 325168), (608, 203230), (760, 162584), (1216, 101615), (1520, 81292), (3040, 40646), (6080, 20323)]