84415280

素因数分解:

$2^4\times 5^1\times {\mathrm{1055191}}^1$

素因数の和:1055204

約数の個数: 20

約数和(自身を含む): 196265712

約数和(自身を除く): 111850432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1055191, 2110382, 4220764, 5275955, 8441528, 10551910, 16883056, 21103820, 42207640, 84415280]

約数ペア:

[(1, 84415280), (2, 42207640), (4, 21103820), (5, 16883056), (8, 10551910), (10, 8441528), (16, 5275955), (20, 4220764), (40, 2110382), (80, 1055191)]