288766720

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20509}}^1$

素因数の和:20541

約数の個数: 72

約数和(自身を含む): 754603920

約数和(自身を除く): 465837200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 7040, 14080, 20509, 41018, 82036, 102545, 164072, 205090, 225599, 328144, 410180, 451198, 656288, 820360, 902396, 1127995, 1312576, 1640720, 1804792, 2255990, 2625152, 3281440, 3609584, 4511980, 5250304, 6562880, 7219168, 9023960, 13125760, 14438336, 18047920, 26251520, 28876672, 36095840, 57753344, 72191680, 144383360, 288766720]

約数ペア:

[(1, 288766720), (2, 144383360), (4, 72191680), (5, 57753344), (8, 36095840), (10, 28876672), (11, 26251520), (16, 18047920), (20, 14438336), (22, 13125760), (32, 9023960), (40, 7219168), (44, 6562880), (55, 5250304), (64, 4511980), (80, 3609584), (88, 3281440), (110, 2625152), (128, 2255990), (160, 1804792), (176, 1640720), (220, 1312576), (256, 1127995), (320, 902396), (352, 820360), (440, 656288), (640, 451198), (704, 410180), (880, 328144), (1280, 225599), (1408, 205090), (1760, 164072), (2816, 102545), (3520, 82036), (7040, 41018), (14080, 20509)]