161551180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{18917}}^1$

素因数の和:18994

約数の個数: 48

約数和(自身を含む): 394099776

約数和(自身を除く): 232548596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 18917, 37834, 75668, 94585, 132419, 189170, 264838, 378340, 529676, 662095, 1153937, 1324190, 2307874, 2648380, 4615748, 5769685, 8077559, 11539370, 16155118, 23078740, 32310236, 40387795, 80775590, 161551180]

約数ペア:

[(1, 161551180), (2, 80775590), (4, 40387795), (5, 32310236), (7, 23078740), (10, 16155118), (14, 11539370), (20, 8077559), (28, 5769685), (35, 4615748), (61, 2648380), (70, 2307874), (122, 1324190), (140, 1153937), (244, 662095), (305, 529676), (427, 378340), (610, 264838), (854, 189170), (1220, 132419), (1708, 94585), (2135, 75668), (4270, 37834), (8540, 18917)]