28707840

素因数分解:

$2^{10}\times 3^2\times 5^1\times 7^1\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 264

約数和(自身を含む): 114959520

約数和(自身を除く): 86251680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 89, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 178, 180, 192, 210, 224, 240, 252, 256, 267, 280, 288, 315, 320, 336, 356, 360, 384, 420, 445, 448, 480, 504, 512, 534, 560, 576, 623, 630, 640, 672, 712, 720, 768, 801, 840, 890, 896, 960, 1008, 1024, 1068, 1120, 1152, 1246, 1260, 1280, 1335, 1344, 1424, 1440, 1536, 1602, 1680, 1780, 1792, 1869, 1920, 2016, 2136, 2240, 2304, 2492, 2520, 2560, 2670, 2688, 2848, 2880, 3072, 3115, 3204, 3360, 3560, 3584, 3738, 3840, 4005, 4032, 4272, 4480, 4608, 4984, 5040, 5120, 5340, 5376, 5607, 5696, 5760, 6230, 6408, 6720, 7120, 7168, 7476, 7680, 8010, 8064, 8544, 8960, 9216, 9345, 9968, 10080, 10680, 10752, 11214, 11392, 11520, 12460, 12816, 13440, 14240, 14952, 15360, 16020, 16128, 17088, 17920, 18690, 19936, 20160, 21360, 21504, 22428, 22784, 23040, 24920, 25632, 26880, 28035, 28480, 29904, 32040, 32256, 34176, 35840, 37380, 39872, 40320, 42720, 44856, 45568, 46080, 49840, 51264, 53760, 56070, 56960, 59808, 64080, 64512, 68352, 74760, 79744, 80640, 85440, 89712, 91136, 99680, 102528, 107520, 112140, 113920, 119616, 128160, 136704, 149520, 159488, 161280, 170880, 179424, 199360, 205056, 224280, 227840, 239232, 256320, 273408, 299040, 318976, 322560, 341760, 358848, 398720, 410112, 448560, 455680, 478464, 512640, 598080, 637952, 683520, 717696, 797440, 820224, 897120, 956928, 1025280, 1196160, 1367040, 1435392, 1594880, 1794240, 1913856, 2050560, 2392320, 2870784, 3189760, 3588480, 4101120, 4784640, 5741568, 7176960, 9569280, 14353920, 28707840]

約数ペア:

[(1, 28707840), (2, 14353920), (3, 9569280), (4, 7176960), (5, 5741568), (6, 4784640), (7, 4101120), (8, 3588480), (9, 3189760), (10, 2870784), (12, 2392320), (14, 2050560), (15, 1913856), (16, 1794240), (18, 1594880), (20, 1435392), (21, 1367040), (24, 1196160), (28, 1025280), (30, 956928), (32, 897120), (35, 820224), (36, 797440), (40, 717696), (42, 683520), (45, 637952), (48, 598080), (56, 512640), (60, 478464), (63, 455680), (64, 448560), (70, 410112), (72, 398720), (80, 358848), (84, 341760), (89, 322560), (90, 318976), (96, 299040), (105, 273408), (112, 256320), (120, 239232), (126, 227840), (128, 224280), (140, 205056), (144, 199360), (160, 179424), (168, 170880), (178, 161280), (180, 159488), (192, 149520), (210, 136704), (224, 128160), (240, 119616), (252, 113920), (256, 112140), (267, 107520), (280, 102528), (288, 99680), (315, 91136), (320, 89712), (336, 85440), (356, 80640), (360, 79744), (384, 74760), (420, 68352), (445, 64512), (448, 64080), (480, 59808), (504, 56960), (512, 56070), (534, 53760), (560, 51264), (576, 49840), (623, 46080), (630, 45568), (640, 44856), (672, 42720), (712, 40320), (720, 39872), (768, 37380), (801, 35840), (840, 34176), (890, 32256), (896, 32040), (960, 29904), (1008, 28480), (1024, 28035), (1068, 26880), (1120, 25632), (1152, 24920), (1246, 23040), (1260, 22784), (1280, 22428), (1335, 21504), (1344, 21360), (1424, 20160), (1440, 19936), (1536, 18690), (1602, 17920), (1680, 17088), (1780, 16128), (1792, 16020), (1869, 15360), (1920, 14952), (2016, 14240), (2136, 13440), (2240, 12816), (2304, 12460), (2492, 11520), (2520, 11392), (2560, 11214), (2670, 10752), (2688, 10680), (2848, 10080), (2880, 9968), (3072, 9345), (3115, 9216), (3204, 8960), (3360, 8544), (3560, 8064), (3584, 8010), (3738, 7680), (3840, 7476), (4005, 7168), (4032, 7120), (4272, 6720), (4480, 6408), (4608, 6230), (4984, 5760), (5040, 5696), (5120, 5607), (5340, 5376)]