80081440

素因数分解:

$2^5\times 5^1\times {\mathrm{500509}}^1$

素因数の和:500524

約数の個数: 24

約数和(自身を含む): 189192780

約数和(自身を除く): 109111340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 500509, 1001018, 2002036, 2502545, 4004072, 5005090, 8008144, 10010180, 16016288, 20020360, 40040720, 80081440]

約数ペア:

[(1, 80081440), (2, 40040720), (4, 20020360), (5, 16016288), (8, 10010180), (10, 8008144), (16, 5005090), (20, 4004072), (32, 2502545), (40, 2002036), (80, 1001018), (160, 500509)]