220161280

素因数分解:

$2^8\times 5^1\times {\mathrm{172001}}^1$

素因数の和:172022

約数の個数: 36

約数和(自身を含む): 527358132

約数和(自身を除く): 307196852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 172001, 344002, 688004, 860005, 1376008, 1720010, 2752016, 3440020, 5504032, 6880040, 11008064, 13760080, 22016128, 27520160, 44032256, 55040320, 110080640, 220161280]

約数ペア:

[(1, 220161280), (2, 110080640), (4, 55040320), (5, 44032256), (8, 27520160), (10, 22016128), (16, 13760080), (20, 11008064), (32, 6880040), (40, 5504032), (64, 3440020), (80, 2752016), (128, 1720010), (160, 1376008), (256, 860005), (320, 688004), (640, 344002), (1280, 172001)]