80281440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:501

約数の個数: 144

約数和(自身を含む): 276324048

約数和(自身を除く): 196042608

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 197, 240, 283, 288, 360, 394, 480, 566, 591, 720, 788, 849, 985, 1132, 1182, 1415, 1440, 1576, 1698, 1773, 1970, 2264, 2364, 2547, 2830, 2955, 3152, 3396, 3546, 3940, 4245, 4528, 4728, 5094, 5660, 5910, 6304, 6792, 7092, 7880, 8490, 8865, 9056, 9456, 10188, 11320, 11820, 12735, 13584, 14184, 15760, 16980, 17730, 18912, 20376, 22640, 23640, 25470, 27168, 28368, 31520, 33960, 35460, 40752, 45280, 47280, 50940, 55751, 56736, 67920, 70920, 81504, 94560, 101880, 111502, 135840, 141840, 167253, 203760, 223004, 278755, 283680, 334506, 407520, 446008, 501759, 557510, 669012, 836265, 892016, 1003518, 1115020, 1338024, 1672530, 1784032, 2007036, 2230040, 2508795, 2676048, 3345060, 4014072, 4460080, 5017590, 5352096, 6690120, 8028144, 8920160, 10035180, 13380240, 16056288, 20070360, 26760480, 40140720, 80281440]

約数ペア:

[(1, 80281440), (2, 40140720), (3, 26760480), (4, 20070360), (5, 16056288), (6, 13380240), (8, 10035180), (9, 8920160), (10, 8028144), (12, 6690120), (15, 5352096), (16, 5017590), (18, 4460080), (20, 4014072), (24, 3345060), (30, 2676048), (32, 2508795), (36, 2230040), (40, 2007036), (45, 1784032), (48, 1672530), (60, 1338024), (72, 1115020), (80, 1003518), (90, 892016), (96, 836265), (120, 669012), (144, 557510), (160, 501759), (180, 446008), (197, 407520), (240, 334506), (283, 283680), (288, 278755), (360, 223004), (394, 203760), (480, 167253), (566, 141840), (591, 135840), (720, 111502), (788, 101880), (849, 94560), (985, 81504), (1132, 70920), (1182, 67920), (1415, 56736), (1440, 55751), (1576, 50940), (1698, 47280), (1773, 45280), (1970, 40752), (2264, 35460), (2364, 33960), (2547, 31520), (2830, 28368), (2955, 27168), (3152, 25470), (3396, 23640), (3546, 22640), (3940, 20376), (4245, 18912), (4528, 17730), (4728, 16980), (5094, 15760), (5660, 14184), (5910, 13584), (6304, 12735), (6792, 11820), (7092, 11320), (7880, 10188), (8490, 9456), (8865, 9056)]