219921650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{338341}}^1$

素因数の和:338366

約数の個数: 24

約数和(自身を含む): 440521284

約数和(自身を除く): 220599634

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 338341, 676682, 1691705, 3383410, 4398433, 8458525, 8796866, 16917050, 21992165, 43984330, 109960825, 219921650]

約数ペア:

[(1, 219921650), (2, 109960825), (5, 43984330), (10, 21992165), (13, 16917050), (25, 8796866), (26, 8458525), (50, 4398433), (65, 3383410), (130, 1691705), (325, 676682), (650, 338341)]