215880520

素因数分解:

$2^3\times 5^1\times {\mathrm{5397013}}^1$

素因数の和:5397024

約数の個数: 16

約数和(自身を含む): 485731260

約数和(自身を除く): 269850740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5397013, 10794026, 21588052, 26985065, 43176104, 53970130, 107940260, 215880520]

約数ペア:

[(1, 215880520), (2, 107940260), (4, 53970130), (5, 43176104), (8, 26985065), (10, 21588052), (20, 10794026), (40, 5397013)]