20859950

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{5281}}^1$

素因数の和:5372

約数の個数: 24

約数和(自身を含む): 39298080

約数和(自身を除く): 18438130

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 3950, 5281, 10562, 26405, 52810, 132025, 264050, 417199, 834398, 2085995, 4171990, 10429975, 20859950]

約数ペア:

[(1, 20859950), (2, 10429975), (5, 4171990), (10, 2085995), (25, 834398), (50, 417199), (79, 264050), (158, 132025), (395, 52810), (790, 26405), (1975, 10562), (3950, 5281)]