172320640

素因数分解:

$2^7\times 5^1\times {\mathrm{269251}}^1$

素因数の和:269270

約数の個数: 32

約数和(自身を含む): 411955560

約数和(自身を除く): 239634920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 269251, 538502, 1077004, 1346255, 2154008, 2692510, 4308016, 5385020, 8616032, 10770040, 17232064, 21540080, 34464128, 43080160, 86160320, 172320640]

約数ペア:

[(1, 172320640), (2, 86160320), (4, 43080160), (5, 34464128), (8, 21540080), (10, 17232064), (16, 10770040), (20, 8616032), (32, 5385020), (40, 4308016), (64, 2692510), (80, 2154008), (128, 1346255), (160, 1077004), (320, 538502), (640, 269251)]