20176480

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6637}}^1$

素因数の和:6671

約数の個数: 48

約数和(自身を含む): 50183280

約数和(自身を除く): 30006800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6637, 13274, 26548, 33185, 53096, 66370, 106192, 126103, 132740, 212384, 252206, 265480, 504412, 530960, 630515, 1008824, 1061920, 1261030, 2017648, 2522060, 4035296, 5044120, 10088240, 20176480]

約数ペア:

[(1, 20176480), (2, 10088240), (4, 5044120), (5, 4035296), (8, 2522060), (10, 2017648), (16, 1261030), (19, 1061920), (20, 1008824), (32, 630515), (38, 530960), (40, 504412), (76, 265480), (80, 252206), (95, 212384), (152, 132740), (160, 126103), (190, 106192), (304, 66370), (380, 53096), (608, 33185), (760, 26548), (1520, 13274), (3040, 6637)]