80645440

素因数分解:

$2^6\times 5^1\times {\mathrm{252017}}^1$

素因数の和:252034

約数の個数: 28

約数和(自身を含む): 192037716

約数和(自身を除く): 111392276

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 252017, 504034, 1008068, 1260085, 2016136, 2520170, 4032272, 5040340, 8064544, 10080680, 16129088, 20161360, 40322720, 80645440]

約数ペア:

[(1, 80645440), (2, 40322720), (4, 20161360), (5, 16129088), (8, 10080680), (10, 8064544), (16, 5040340), (20, 4032272), (32, 2520170), (40, 2016136), (64, 1260085), (80, 1008068), (160, 504034), (320, 252017)]