491400000020

素因数分解:

$2^2\times 5^1\times {\mathrm{8093}}^1\times {\mathrm{3035957}}^1$

素因数の和:3044059

約数の個数: 24

約数和(自身を含む): 1032067850184

約数和(自身を除く): 540667850164

約数列:

[1, 2, 4, 5, 10, 20, 8093, 16186, 32372, 40465, 80930, 161860, 3035957, 6071914, 12143828, 15179785, 30359570, 60719140, 24570000001, 49140000002, 98280000004, 122850000005, 245700000010, 491400000020]

約数ペア:

[(1, 491400000020), (2, 245700000010), (4, 122850000005), (5, 98280000004), (10, 49140000002), (20, 24570000001), (8093, 60719140), (16186, 30359570), (32372, 15179785), (40465, 12143828), (80930, 6071914), (161860, 3035957)]