216880

素因数分解:

$2^4\times 5^1\times {\mathrm{2711}}^1$

素因数の和:2724

約数の個数: 20

約数和(自身を含む): 504432

約数和(自身を除く): 287552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2711, 5422, 10844, 13555, 21688, 27110, 43376, 54220, 108440, 216880]

約数ペア:

[(1, 216880), (2, 108440), (4, 54220), (5, 43376), (8, 27110), (10, 21688), (16, 13555), (20, 10844), (40, 5422), (80, 2711)]