128528640

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{3719}}^1$

素因数の和:3749

約数の個数: 144

約数和(自身を含む): 456220800

約数和(自身を除く): 327692160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 768, 864, 960, 1080, 1152, 1280, 1440, 1728, 1920, 2160, 2304, 2880, 3456, 3719, 3840, 4320, 5760, 6912, 7438, 8640, 11157, 11520, 14876, 17280, 18595, 22314, 29752, 33471, 34560, 37190, 44628, 55785, 59504, 66942, 74380, 89256, 100413, 111570, 119008, 133884, 148760, 167355, 178512, 200826, 223140, 238016, 267768, 297520, 334710, 357024, 401652, 446280, 476032, 502065, 535536, 595040, 669420, 714048, 803304, 892560, 952064, 1004130, 1071072, 1190080, 1338840, 1428096, 1606608, 1785120, 2008260, 2142144, 2380160, 2677680, 2856192, 3213216, 3570240, 4016520, 4284288, 4760320, 5355360, 6426432, 7140480, 8033040, 8568576, 10710720, 12852864, 14280960, 16066080, 21421440, 25705728, 32132160, 42842880, 64264320, 128528640]

約数ペア:

[(1, 128528640), (2, 64264320), (3, 42842880), (4, 32132160), (5, 25705728), (6, 21421440), (8, 16066080), (9, 14280960), (10, 12852864), (12, 10710720), (15, 8568576), (16, 8033040), (18, 7140480), (20, 6426432), (24, 5355360), (27, 4760320), (30, 4284288), (32, 4016520), (36, 3570240), (40, 3213216), (45, 2856192), (48, 2677680), (54, 2380160), (60, 2142144), (64, 2008260), (72, 1785120), (80, 1606608), (90, 1428096), (96, 1338840), (108, 1190080), (120, 1071072), (128, 1004130), (135, 952064), (144, 892560), (160, 803304), (180, 714048), (192, 669420), (216, 595040), (240, 535536), (256, 502065), (270, 476032), (288, 446280), (320, 401652), (360, 357024), (384, 334710), (432, 297520), (480, 267768), (540, 238016), (576, 223140), (640, 200826), (720, 178512), (768, 167355), (864, 148760), (960, 133884), (1080, 119008), (1152, 111570), (1280, 100413), (1440, 89256), (1728, 74380), (1920, 66942), (2160, 59504), (2304, 55785), (2880, 44628), (3456, 37190), (3719, 34560), (3840, 33471), (4320, 29752), (5760, 22314), (6912, 18595), (7438, 17280), (8640, 14876), (11157, 11520)]