21306240

素因数分解:

$2^7\times 3^5\times 5^1\times {\mathrm{137}}^1$

素因数の和:171

約数の個数: 192

約数和(自身を含む): 76854960

約数和(自身を除く): 55548720

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, 81, 90, 96, 108, 120, 128, 135, 137, 144, 160, 162, 180, 192, 216, 240, 243, 270, 274, 288, 320, 324, 360, 384, 405, 411, 432, 480, 486, 540, 548, 576, 640, 648, 685, 720, 810, 822, 864, 960, 972, 1080, 1096, 1152, 1215, 1233, 1296, 1370, 1440, 1620, 1644, 1728, 1920, 1944, 2055, 2160, 2192, 2430, 2466, 2592, 2740, 2880, 3240, 3288, 3456, 3699, 3888, 4110, 4320, 4384, 4860, 4932, 5184, 5480, 5760, 6165, 6480, 6576, 7398, 7776, 8220, 8640, 8768, 9720, 9864, 10368, 10960, 11097, 12330, 12960, 13152, 14796, 15552, 16440, 17280, 17536, 18495, 19440, 19728, 21920, 22194, 24660, 25920, 26304, 29592, 31104, 32880, 33291, 36990, 38880, 39456, 43840, 44388, 49320, 51840, 52608, 55485, 59184, 65760, 66582, 73980, 77760, 78912, 87680, 88776, 98640, 110970, 118368, 131520, 133164, 147960, 155520, 157824, 166455, 177552, 197280, 221940, 236736, 263040, 266328, 295920, 332910, 355104, 394560, 443880, 473472, 532656, 591840, 665820, 710208, 789120, 887760, 1065312, 1183680, 1331640, 1420416, 1775520, 2130624, 2367360, 2663280, 3551040, 4261248, 5326560, 7102080, 10653120, 21306240]

約数ペア:

[(1, 21306240), (2, 10653120), (3, 7102080), (4, 5326560), (5, 4261248), (6, 3551040), (8, 2663280), (9, 2367360), (10, 2130624), (12, 1775520), (15, 1420416), (16, 1331640), (18, 1183680), (20, 1065312), (24, 887760), (27, 789120), (30, 710208), (32, 665820), (36, 591840), (40, 532656), (45, 473472), (48, 443880), (54, 394560), (60, 355104), (64, 332910), (72, 295920), (80, 266328), (81, 263040), (90, 236736), (96, 221940), (108, 197280), (120, 177552), (128, 166455), (135, 157824), (137, 155520), (144, 147960), (160, 133164), (162, 131520), (180, 118368), (192, 110970), (216, 98640), (240, 88776), (243, 87680), (270, 78912), (274, 77760), (288, 73980), (320, 66582), (324, 65760), (360, 59184), (384, 55485), (405, 52608), (411, 51840), (432, 49320), (480, 44388), (486, 43840), (540, 39456), (548, 38880), (576, 36990), (640, 33291), (648, 32880), (685, 31104), (720, 29592), (810, 26304), (822, 25920), (864, 24660), (960, 22194), (972, 21920), (1080, 19728), (1096, 19440), (1152, 18495), (1215, 17536), (1233, 17280), (1296, 16440), (1370, 15552), (1440, 14796), (1620, 13152), (1644, 12960), (1728, 12330), (1920, 11097), (1944, 10960), (2055, 10368), (2160, 9864), (2192, 9720), (2430, 8768), (2466, 8640), (2592, 8220), (2740, 7776), (2880, 7398), (3240, 6576), (3288, 6480), (3456, 6165), (3699, 5760), (3888, 5480), (4110, 5184), (4320, 4932), (4384, 4860)]