81894180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71837}}^1$

素因数の和:71868

約数の個数: 48

約数和(自身を含む): 241375680

約数和(自身を除く): 159481500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 71837, 143674, 215511, 287348, 359185, 431022, 718370, 862044, 1077555, 1364903, 1436740, 2155110, 2729806, 4094709, 4310220, 5459612, 6824515, 8189418, 13649030, 16378836, 20473545, 27298060, 40947090, 81894180]

約数ペア:

[(1, 81894180), (2, 40947090), (3, 27298060), (4, 20473545), (5, 16378836), (6, 13649030), (10, 8189418), (12, 6824515), (15, 5459612), (19, 4310220), (20, 4094709), (30, 2729806), (38, 2155110), (57, 1436740), (60, 1364903), (76, 1077555), (95, 862044), (114, 718370), (190, 431022), (228, 359185), (285, 287348), (380, 215511), (570, 143674), (1140, 71837)]