9940720

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{907}}^1$

素因数の和:1057

約数の個数: 40

約数和(自身を含む): 23306544

約数和(自身を除く): 13365824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 907, 1096, 1370, 1814, 2192, 2740, 3628, 4535, 5480, 7256, 9070, 10960, 14512, 18140, 36280, 72560, 124259, 248518, 497036, 621295, 994072, 1242590, 1988144, 2485180, 4970360, 9940720]

約数ペア:

[(1, 9940720), (2, 4970360), (4, 2485180), (5, 1988144), (8, 1242590), (10, 994072), (16, 621295), (20, 497036), (40, 248518), (80, 124259), (137, 72560), (274, 36280), (548, 18140), (685, 14512), (907, 10960), (1096, 9070), (1370, 7256), (1814, 5480), (2192, 4535), (2740, 3628)]