84439120

素因数分解:

$2^4\times 5^1\times {\mathrm{1055489}}^1$

素因数の和:1055502

約数の個数: 20

約数和(自身を含む): 196321140

約数和(自身を除く): 111882020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1055489, 2110978, 4221956, 5277445, 8443912, 10554890, 16887824, 21109780, 42219560, 84439120]

約数ペア:

[(1, 84439120), (2, 42219560), (4, 21109780), (5, 16887824), (8, 10554890), (10, 8443912), (16, 5277445), (20, 4221956), (40, 2110978), (80, 1055489)]