408055120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{911}}^1$

素因数の和:1444

約数の個数: 80

約数和(自身を含む): 1038147840

約数和(自身を除く): 630092720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 509, 880, 911, 1018, 1822, 2036, 2545, 3644, 4072, 4555, 5090, 5599, 7288, 8144, 9110, 10021, 10180, 11198, 14576, 18220, 20042, 20360, 22396, 27995, 36440, 40084, 40720, 44792, 50105, 55990, 72880, 80168, 89584, 100210, 111980, 160336, 200420, 223960, 400840, 447920, 463699, 801680, 927398, 1854796, 2318495, 3709592, 4636990, 5100689, 7419184, 9273980, 10201378, 18547960, 20402756, 25503445, 37095920, 40805512, 51006890, 81611024, 102013780, 204027560, 408055120]

約数ペア:

[(1, 408055120), (2, 204027560), (4, 102013780), (5, 81611024), (8, 51006890), (10, 40805512), (11, 37095920), (16, 25503445), (20, 20402756), (22, 18547960), (40, 10201378), (44, 9273980), (55, 7419184), (80, 5100689), (88, 4636990), (110, 3709592), (176, 2318495), (220, 1854796), (440, 927398), (509, 801680), (880, 463699), (911, 447920), (1018, 400840), (1822, 223960), (2036, 200420), (2545, 160336), (3644, 111980), (4072, 100210), (4555, 89584), (5090, 80168), (5599, 72880), (7288, 55990), (8144, 50105), (9110, 44792), (10021, 40720), (10180, 40084), (11198, 36440), (14576, 27995), (18220, 22396), (20042, 20360)]