82560640

素因数分解:

$2^7\times 5^1\times {\mathrm{129001}}^1$

素因数の和:129020

約数の個数: 32

約数和(自身を含む): 197373060

約数和(自身を除く): 114812420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 129001, 258002, 516004, 645005, 1032008, 1290010, 2064016, 2580020, 4128032, 5160040, 8256064, 10320080, 16512128, 20640160, 41280320, 82560640]

約数ペア:

[(1, 82560640), (2, 41280320), (4, 20640160), (5, 16512128), (8, 10320080), (10, 8256064), (16, 5160040), (20, 4128032), (32, 2580020), (40, 2064016), (64, 1290010), (80, 1032008), (128, 645005), (160, 516004), (320, 258002), (640, 129001)]