13217990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 24687936

約数和(自身を除く): 11469946

約数列:

[1, 2, 5, 10, 41, 82, 103, 205, 206, 313, 410, 515, 626, 1030, 1565, 3130, 4223, 8446, 12833, 21115, 25666, 32239, 42230, 64165, 64478, 128330, 161195, 322390, 1321799, 2643598, 6608995, 13217990]

約数ペア:

[(1, 13217990), (2, 6608995), (5, 2643598), (10, 1321799), (41, 322390), (82, 161195), (103, 128330), (205, 64478), (206, 64165), (313, 42230), (410, 32239), (515, 25666), (626, 21115), (1030, 12833), (1565, 8446), (3130, 4223)]