1271910980

素因数分解:

$2^2\times 5^1\times {\mathrm{63595549}}^1$

素因数の和:63595558

約数の個数: 12

約数和(自身を含む): 2671013100

約数和(自身を除く): 1399102120

約数列:

[1, 2, 4, 5, 10, 20, 63595549, 127191098, 254382196, 317977745, 635955490, 1271910980]

約数ペア:

[(1, 1271910980), (2, 635955490), (4, 317977745), (5, 254382196), (10, 127191098), (20, 63595549)]