3200800

素因数分解:

$2^5\times 5^2\times {\mathrm{4001}}^1$

素因数の和:4021

約数の個数: 36

約数和(自身を含む): 7815906

約数和(自身を除く): 4615106

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 4001, 8002, 16004, 20005, 32008, 40010, 64016, 80020, 100025, 128032, 160040, 200050, 320080, 400100, 640160, 800200, 1600400, 3200800]

約数ペア:

[(1, 3200800), (2, 1600400), (4, 800200), (5, 640160), (8, 400100), (10, 320080), (16, 200050), (20, 160040), (25, 128032), (32, 100025), (40, 80020), (50, 64016), (80, 40010), (100, 32008), (160, 20005), (200, 16004), (400, 8002), (800, 4001)]