20205340

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3931}}^1$

素因数の和:4197

約数の個数: 24

約数和(自身を含む): 42607152

約数和(自身を除く): 22401812

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 3931, 5140, 7862, 15724, 19655, 39310, 78620, 1010267, 2020534, 4041068, 5051335, 10102670, 20205340]

約数ペア:

[(1, 20205340), (2, 10102670), (4, 5051335), (5, 4041068), (10, 2020534), (20, 1010267), (257, 78620), (514, 39310), (1028, 19655), (1285, 15724), (2570, 7862), (3931, 5140)]