172900720

素因数分解:

$2^4\times 5^1\times {\mathrm{2161259}}^1$

素因数の和:2161272

約数の個数: 20

約数和(自身を含む): 401994360

約数和(自身を除く): 229093640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2161259, 4322518, 8645036, 10806295, 17290072, 21612590, 34580144, 43225180, 86450360, 172900720]

約数ペア:

[(1, 172900720), (2, 86450360), (4, 43225180), (5, 34580144), (8, 21612590), (10, 17290072), (16, 10806295), (20, 8645036), (40, 4322518), (80, 2161259)]