21358080

素因数分解:

$2^9\times 3^4\times 5^1\times {\mathrm{103}}^1$

素因数の和:138

約数の個数: 200

約数和(自身を含む): 77240592

約数和(自身を除く): 55882512

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, 103, 108, 120, 128, 135, 144, 160, 162, 180, 192, 206, 216, 240, 256, 270, 288, 309, 320, 324, 360, 384, 405, 412, 432, 480, 512, 515, 540, 576, 618, 640, 648, 720, 768, 810, 824, 864, 927, 960, 1030, 1080, 1152, 1236, 1280, 1296, 1440, 1536, 1545, 1620, 1648, 1728, 1854, 1920, 2060, 2160, 2304, 2472, 2560, 2592, 2781, 2880, 3090, 3240, 3296, 3456, 3708, 3840, 4120, 4320, 4608, 4635, 4944, 5184, 5562, 5760, 6180, 6480, 6592, 6912, 7416, 7680, 8240, 8343, 8640, 9270, 9888, 10368, 11124, 11520, 12360, 12960, 13184, 13824, 13905, 14832, 16480, 16686, 17280, 18540, 19776, 20736, 22248, 23040, 24720, 25920, 26368, 27810, 29664, 32960, 33372, 34560, 37080, 39552, 41472, 41715, 44496, 49440, 51840, 52736, 55620, 59328, 65920, 66744, 69120, 74160, 79104, 83430, 88992, 98880, 103680, 111240, 118656, 131840, 133488, 148320, 158208, 166860, 177984, 197760, 207360, 222480, 237312, 263680, 266976, 296640, 333720, 355968, 395520, 444960, 474624, 533952, 593280, 667440, 711936, 791040, 889920, 1067904, 1186560, 1334880, 1423872, 1779840, 2135808, 2373120, 2669760, 3559680, 4271616, 5339520, 7119360, 10679040, 21358080]

約数ペア:

[(1, 21358080), (2, 10679040), (3, 7119360), (4, 5339520), (5, 4271616), (6, 3559680), (8, 2669760), (9, 2373120), (10, 2135808), (12, 1779840), (15, 1423872), (16, 1334880), (18, 1186560), (20, 1067904), (24, 889920), (27, 791040), (30, 711936), (32, 667440), (36, 593280), (40, 533952), (45, 474624), (48, 444960), (54, 395520), (60, 355968), (64, 333720), (72, 296640), (80, 266976), (81, 263680), (90, 237312), (96, 222480), (103, 207360), (108, 197760), (120, 177984), (128, 166860), (135, 158208), (144, 148320), (160, 133488), (162, 131840), (180, 118656), (192, 111240), (206, 103680), (216, 98880), (240, 88992), (256, 83430), (270, 79104), (288, 74160), (309, 69120), (320, 66744), (324, 65920), (360, 59328), (384, 55620), (405, 52736), (412, 51840), (432, 49440), (480, 44496), (512, 41715), (515, 41472), (540, 39552), (576, 37080), (618, 34560), (640, 33372), (648, 32960), (720, 29664), (768, 27810), (810, 26368), (824, 25920), (864, 24720), (927, 23040), (960, 22248), (1030, 20736), (1080, 19776), (1152, 18540), (1236, 17280), (1280, 16686), (1296, 16480), (1440, 14832), (1536, 13905), (1545, 13824), (1620, 13184), (1648, 12960), (1728, 12360), (1854, 11520), (1920, 11124), (2060, 10368), (2160, 9888), (2304, 9270), (2472, 8640), (2560, 8343), (2592, 8240), (2781, 7680), (2880, 7416), (3090, 6912), (3240, 6592), (3296, 6480), (3456, 6180), (3708, 5760), (3840, 5562), (4120, 5184), (4320, 4944), (4608, 4635)]