638642056

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{6140789}}^1$

素因数の和:6140808

約数の個数: 16

約数和(自身を含む): 1289565900

約数和(自身を除く): 650923844

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 6140789, 12281578, 24563156, 49126312, 79830257, 159660514, 319321028, 638642056]

約数ペア:

[(1, 638642056), (2, 319321028), (4, 159660514), (8, 79830257), (13, 49126312), (26, 24563156), (52, 12281578), (104, 6140789)]