1405904176

素因数分解:

$2^4\times {\mathrm{10009}}^1\times {\mathrm{8779}}^1$

素因数の和:18796

約数の個数: 20

約数和(自身を含む): 2724521800

約数和(自身を除く): 1318617624

約数列:

[1, 2, 4, 8, 16, 8779, 10009, 17558, 20018, 35116, 40036, 70232, 80072, 140464, 160144, 87869011, 175738022, 351476044, 702952088, 1405904176]

約数ペア:

[(1, 1405904176), (2, 702952088), (4, 351476044), (8, 175738022), (16, 87869011), (8779, 160144), (10009, 140464), (17558, 80072), (20018, 70232), (35116, 40036)]