28085760

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 240

約数和(自身を含む): 103413024

約数和(自身を除く): 75327264

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 53, 60, 64, 69, 72, 80, 90, 92, 96, 106, 115, 120, 128, 138, 144, 159, 160, 180, 184, 192, 207, 212, 230, 240, 256, 265, 276, 288, 318, 320, 345, 360, 368, 384, 414, 424, 460, 477, 480, 512, 530, 552, 576, 636, 640, 690, 720, 736, 768, 795, 828, 848, 920, 954, 960, 1035, 1060, 1104, 1152, 1219, 1272, 1280, 1380, 1440, 1472, 1536, 1590, 1656, 1696, 1840, 1908, 1920, 2070, 2120, 2208, 2304, 2385, 2438, 2544, 2560, 2760, 2880, 2944, 3180, 3312, 3392, 3657, 3680, 3816, 3840, 4140, 4240, 4416, 4608, 4770, 4876, 5088, 5520, 5760, 5888, 6095, 6360, 6624, 6784, 7314, 7360, 7632, 7680, 8280, 8480, 8832, 9540, 9752, 10176, 10971, 11040, 11520, 11776, 12190, 12720, 13248, 13568, 14628, 14720, 15264, 16560, 16960, 17664, 18285, 19080, 19504, 20352, 21942, 22080, 23040, 24380, 25440, 26496, 27136, 29256, 29440, 30528, 33120, 33920, 35328, 36570, 38160, 39008, 40704, 43884, 44160, 48760, 50880, 52992, 54855, 58512, 58880, 61056, 66240, 67840, 73140, 76320, 78016, 81408, 87768, 88320, 97520, 101760, 105984, 109710, 117024, 122112, 132480, 135680, 146280, 152640, 156032, 175536, 176640, 195040, 203520, 219420, 234048, 244224, 264960, 292560, 305280, 312064, 351072, 390080, 407040, 438840, 468096, 529920, 585120, 610560, 624128, 702144, 780160, 877680, 936192, 1170240, 1221120, 1404288, 1560320, 1755360, 1872384, 2340480, 2808576, 3120640, 3510720, 4680960, 5617152, 7021440, 9361920, 14042880, 28085760]

約数ペア:

[(1, 28085760), (2, 14042880), (3, 9361920), (4, 7021440), (5, 5617152), (6, 4680960), (8, 3510720), (9, 3120640), (10, 2808576), (12, 2340480), (15, 1872384), (16, 1755360), (18, 1560320), (20, 1404288), (23, 1221120), (24, 1170240), (30, 936192), (32, 877680), (36, 780160), (40, 702144), (45, 624128), (46, 610560), (48, 585120), (53, 529920), (60, 468096), (64, 438840), (69, 407040), (72, 390080), (80, 351072), (90, 312064), (92, 305280), (96, 292560), (106, 264960), (115, 244224), (120, 234048), (128, 219420), (138, 203520), (144, 195040), (159, 176640), (160, 175536), (180, 156032), (184, 152640), (192, 146280), (207, 135680), (212, 132480), (230, 122112), (240, 117024), (256, 109710), (265, 105984), (276, 101760), (288, 97520), (318, 88320), (320, 87768), (345, 81408), (360, 78016), (368, 76320), (384, 73140), (414, 67840), (424, 66240), (460, 61056), (477, 58880), (480, 58512), (512, 54855), (530, 52992), (552, 50880), (576, 48760), (636, 44160), (640, 43884), (690, 40704), (720, 39008), (736, 38160), (768, 36570), (795, 35328), (828, 33920), (848, 33120), (920, 30528), (954, 29440), (960, 29256), (1035, 27136), (1060, 26496), (1104, 25440), (1152, 24380), (1219, 23040), (1272, 22080), (1280, 21942), (1380, 20352), (1440, 19504), (1472, 19080), (1536, 18285), (1590, 17664), (1656, 16960), (1696, 16560), (1840, 15264), (1908, 14720), (1920, 14628), (2070, 13568), (2120, 13248), (2208, 12720), (2304, 12190), (2385, 11776), (2438, 11520), (2544, 11040), (2560, 10971), (2760, 10176), (2880, 9752), (2944, 9540), (3180, 8832), (3312, 8480), (3392, 8280), (3657, 7680), (3680, 7632), (3816, 7360), (3840, 7314), (4140, 6784), (4240, 6624), (4416, 6360), (4608, 6095), (4770, 5888), (4876, 5760), (5088, 5520)]