18913700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{14549}}^1$

素因数の和:14576

約数の個数: 36

約数和(自身を含む): 44202900

約数和(自身を除く): 25289200

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 14549, 29098, 58196, 72745, 145490, 189137, 290980, 363725, 378274, 727450, 756548, 945685, 1454900, 1891370, 3782740, 4728425, 9456850, 18913700]

約数ペア:

[(1, 18913700), (2, 9456850), (4, 4728425), (5, 3782740), (10, 1891370), (13, 1454900), (20, 945685), (25, 756548), (26, 727450), (50, 378274), (52, 363725), (65, 290980), (100, 189137), (130, 145490), (260, 72745), (325, 58196), (650, 29098), (1300, 14549)]