678964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1187}}^1$

素因数の和:1215

約数の個数: 24

約数和(自身を含む): 1397088

約数和(自身を除く): 718124

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 1187, 2374, 4748, 13057, 15431, 26114, 30862, 52228, 61724, 169741, 339482, 678964]

約数ペア:

[(1, 678964), (2, 339482), (4, 169741), (11, 61724), (13, 52228), (22, 30862), (26, 26114), (44, 15431), (52, 13057), (143, 4748), (286, 2374), (572, 1187)]