1120280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4001}}^1$

素因数の和:4019

約数の個数: 32

約数和(自身を含む): 2881440

約数和(自身を除く): 1761160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4001, 8002, 16004, 20005, 28007, 32008, 40010, 56014, 80020, 112028, 140035, 160040, 224056, 280070, 560140, 1120280]

約数ペア:

[(1, 1120280), (2, 560140), (4, 280070), (5, 224056), (7, 160040), (8, 140035), (10, 112028), (14, 80020), (20, 56014), (28, 40010), (35, 32008), (40, 28007), (56, 20005), (70, 16004), (140, 8002), (280, 4001)]