28413440

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1009}}^1$

素因数の和:1043

約数の個数: 80

約数和(自身を含む): 74392560

約数和(自身を除く): 45979120

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, 512, 640, 704, 880, 1009, 1280, 1408, 1760, 2018, 2560, 2816, 3520, 4036, 5045, 5632, 7040, 8072, 10090, 11099, 14080, 16144, 20180, 22198, 28160, 32288, 40360, 44396, 55495, 64576, 80720, 88792, 110990, 129152, 161440, 177584, 221980, 258304, 322880, 355168, 443960, 516608, 645760, 710336, 887920, 1291520, 1420672, 1775840, 2583040, 2841344, 3551680, 5682688, 7103360, 14206720, 28413440]

約数ペア:

[(1, 28413440), (2, 14206720), (4, 7103360), (5, 5682688), (8, 3551680), (10, 2841344), (11, 2583040), (16, 1775840), (20, 1420672), (22, 1291520), (32, 887920), (40, 710336), (44, 645760), (55, 516608), (64, 443960), (80, 355168), (88, 322880), (110, 258304), (128, 221980), (160, 177584), (176, 161440), (220, 129152), (256, 110990), (320, 88792), (352, 80720), (440, 64576), (512, 55495), (640, 44396), (704, 40360), (880, 32288), (1009, 28160), (1280, 22198), (1408, 20180), (1760, 16144), (2018, 14080), (2560, 11099), (2816, 10090), (3520, 8072), (4036, 7040), (5045, 5632)]