165712460

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 353463264

約数和(自身を除く): 187750804

約数列:

[1, 2, 4, 5, 10, 20, 137, 197, 274, 307, 394, 548, 614, 685, 788, 985, 1228, 1370, 1535, 1970, 2740, 3070, 3940, 6140, 26989, 42059, 53978, 60479, 84118, 107956, 120958, 134945, 168236, 210295, 241916, 269890, 302395, 420590, 539780, 604790, 841180, 1209580, 8285623, 16571246, 33142492, 41428115, 82856230, 165712460]

約数ペア:

[(1, 165712460), (2, 82856230), (4, 41428115), (5, 33142492), (10, 16571246), (20, 8285623), (137, 1209580), (197, 841180), (274, 604790), (307, 539780), (394, 420590), (548, 302395), (614, 269890), (685, 241916), (788, 210295), (985, 168236), (1228, 134945), (1370, 120958), (1535, 107956), (1970, 84118), (2740, 60479), (3070, 53978), (3940, 42059), (6140, 26989)]