678704638

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:792

約数の個数: 32

約数和(自身を含む): 1067489280

約数和(自身を除く): 388784642

約数列:

[1, 2, 31, 62, 107, 214, 263, 389, 526, 778, 3317, 6634, 8153, 12059, 16306, 24118, 28141, 41623, 56282, 83246, 102307, 204614, 872371, 1290313, 1744742, 2580626, 3171517, 6343034, 10946849, 21893698, 339352319, 678704638]

約数ペア:

[(1, 678704638), (2, 339352319), (31, 21893698), (62, 10946849), (107, 6343034), (214, 3171517), (263, 2580626), (389, 1744742), (526, 1290313), (778, 872371), (3317, 204614), (6634, 102307), (8153, 83246), (12059, 56282), (16306, 41623), (24118, 28141)]