66104740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{254249}}^1$

素因数の和:254271

約数の個数: 24

約数和(自身を含む): 149499000

約数和(自身を除く): 83394260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 254249, 508498, 1016996, 1271245, 2542490, 3305237, 5084980, 6610474, 13220948, 16526185, 33052370, 66104740]

約数ペア:

[(1, 66104740), (2, 33052370), (4, 16526185), (5, 13220948), (10, 6610474), (13, 5084980), (20, 3305237), (26, 2542490), (52, 1271245), (65, 1016996), (130, 508498), (260, 254249)]