81257144

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{1361}}^1$

素因数の和:1823

約数の個数: 32

約数和(自身を含む): 161805600

約数和(自身を除く): 80548456

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 439, 878, 1361, 1756, 2722, 3512, 5444, 7463, 10888, 14926, 23137, 29852, 46274, 59704, 92548, 185096, 597479, 1194958, 2389916, 4779832, 10157143, 20314286, 40628572, 81257144]

約数ペア:

[(1, 81257144), (2, 40628572), (4, 20314286), (8, 10157143), (17, 4779832), (34, 2389916), (68, 1194958), (136, 597479), (439, 185096), (878, 92548), (1361, 59704), (1756, 46274), (2722, 29852), (3512, 23137), (5444, 14926), (7463, 10888)]