20100208

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{26729}}^1$

素因数の和:26784

約数の個数: 20

約数和(自身を含む): 39774240

約数和(自身を除く): 19674032

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 26729, 53458, 106916, 213832, 427664, 1256263, 2512526, 5025052, 10050104, 20100208]

約数ペア:

[(1, 20100208), (2, 10050104), (4, 5025052), (8, 2512526), (16, 1256263), (47, 427664), (94, 213832), (188, 106916), (376, 53458), (752, 26729)]