27926980

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{4001}}^1$

素因数の和:4359

約数の個数: 24

約数和(自身を含む): 58829400

約数和(自身を除く): 30902420

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 4001, 6980, 8002, 16004, 20005, 40010, 80020, 1396349, 2792698, 5585396, 6981745, 13963490, 27926980]

約数ペア:

[(1, 27926980), (2, 13963490), (4, 6981745), (5, 5585396), (10, 2792698), (20, 1396349), (349, 80020), (698, 40010), (1396, 20005), (1745, 16004), (3490, 8002), (4001, 6980)]