84800020

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{12149}}^1$

素因数の和:12507

約数の個数: 24

約数和(自身を含む): 178605000

約数和(自身を除く): 93804980

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 12149, 24298, 48596, 60745, 121490, 242980, 4240001, 8480002, 16960004, 21200005, 42400010, 84800020]

約数ペア:

[(1, 84800020), (2, 42400010), (4, 21200005), (5, 16960004), (10, 8480002), (20, 4240001), (349, 242980), (698, 121490), (1396, 60745), (1745, 48596), (3490, 24298), (6980, 12149)]