20432840816

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{857}}^1\times {\mathrm{5303}}^1$

素因数の和:6449

約数の個数: 40

約数和(自身を含む): 39783373344

約数和(自身を除く): 19350532528

約数列:

[1, 2, 4, 8, 16, 281, 562, 857, 1124, 1714, 2248, 3428, 4496, 5303, 6856, 10606, 13712, 21212, 42424, 84848, 240817, 481634, 963268, 1490143, 1926536, 2980286, 3853072, 4544671, 5960572, 9089342, 11921144, 18178684, 23842288, 36357368, 72714736, 1277052551, 2554105102, 5108210204, 10216420408, 20432840816]

約数ペア:

[(1, 20432840816), (2, 10216420408), (4, 5108210204), (8, 2554105102), (16, 1277052551), (281, 72714736), (562, 36357368), (857, 23842288), (1124, 18178684), (1714, 11921144), (2248, 9089342), (3428, 5960572), (4496, 4544671), (5303, 3853072), (6856, 2980286), (10606, 1926536), (13712, 1490143), (21212, 963268), (42424, 481634), (84848, 240817)]