78561688

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 81105512

約数列:

[1, 2, 4, 8, 31, 43, 53, 62, 86, 106, 124, 139, 172, 212, 248, 278, 344, 424, 556, 1112, 1333, 1643, 2279, 2666, 3286, 4309, 4558, 5332, 5977, 6572, 7367, 8618, 9116, 10664, 11954, 13144, 14734, 17236, 18232, 23908, 29468, 34472, 47816, 58936, 70649, 141298, 185287, 228377, 282596, 316781, 370574, 456754, 565192, 633562, 741148, 913508, 1267124, 1482296, 1827016, 2534248, 9820211, 19640422, 39280844, 78561688]

約数ペア:

[(1, 78561688), (2, 39280844), (4, 19640422), (8, 9820211), (31, 2534248), (43, 1827016), (53, 1482296), (62, 1267124), (86, 913508), (106, 741148), (124, 633562), (139, 565192), (172, 456754), (212, 370574), (248, 316781), (278, 282596), (344, 228377), (424, 185287), (556, 141298), (1112, 70649), (1333, 58936), (1643, 47816), (2279, 34472), (2666, 29468), (3286, 23908), (4309, 18232), (4558, 17236), (5332, 14734), (5977, 13144), (6572, 11954), (7367, 10664), (8618, 9116)]