678487684

素因数分解:

$2^2\times 7^1\times {\mathrm{4447}}^1\times {\mathrm{5449}}^1$

素因数の和:9907

約数の個数: 24

約数和(自身を含む): 1357529600

約数和(自身を除く): 679041916

約数列:

[1, 2, 4, 7, 14, 28, 4447, 5449, 8894, 10898, 17788, 21796, 31129, 38143, 62258, 76286, 124516, 152572, 24231703, 48463406, 96926812, 169621921, 339243842, 678487684]

約数ペア:

[(1, 678487684), (2, 339243842), (4, 169621921), (7, 96926812), (14, 48463406), (28, 24231703), (4447, 152572), (5449, 124516), (8894, 76286), (10898, 62258), (17788, 38143), (21796, 31129)]