80015560

素因数分解:

$2^3\times 5^1\times {\mathrm{2000389}}^1$

素因数の和:2000400

約数の個数: 16

約数和(自身を含む): 180035100

約数和(自身を除く): 100019540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2000389, 4000778, 8001556, 10001945, 16003112, 20003890, 40007780, 80015560]

約数ペア:

[(1, 80015560), (2, 40007780), (4, 20003890), (5, 16003112), (8, 10001945), (10, 8001556), (20, 4000778), (40, 2000389)]