2805280360

素因数分解:

$2^3\times 5^1\times {\mathrm{70132009}}^1$

素因数の和:70132020

約数の個数: 16

約数和(自身を含む): 6311880900

約数和(自身を除く): 3506600540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 70132009, 140264018, 280528036, 350660045, 561056072, 701320090, 1402640180, 2805280360]

約数ペア:

[(1, 2805280360), (2, 1402640180), (4, 701320090), (5, 561056072), (8, 350660045), (10, 280528036), (20, 140264018), (40, 70132009)]