28897520

素因数分解:

$2^4\times 5^1\times {\mathrm{361219}}^1$

素因数の和:361232

約数の個数: 20

約数和(自身を含む): 67186920

約数和(自身を除く): 38289400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 361219, 722438, 1444876, 1806095, 2889752, 3612190, 5779504, 7224380, 14448760, 28897520]

約数ペア:

[(1, 28897520), (2, 14448760), (4, 7224380), (5, 5779504), (8, 3612190), (10, 2889752), (16, 1806095), (20, 1444876), (40, 722438), (80, 361219)]