420140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3001}}^1$

素因数の和:3017

約数の個数: 24

約数和(自身を含む): 1008672

約数和(自身を除く): 588532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3001, 6002, 12004, 15005, 21007, 30010, 42014, 60020, 84028, 105035, 210070, 420140]

約数ペア:

[(1, 420140), (2, 210070), (4, 105035), (5, 84028), (7, 60020), (10, 42014), (14, 30010), (20, 21007), (28, 15005), (35, 12004), (70, 6002), (140, 3001)]