20171520

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:147

約数の個数: 216

約数和(自身を含む): 74614176

約数和(自身を除く): 54442656

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 103, 120, 128, 136, 144, 153, 160, 170, 180, 192, 204, 206, 240, 255, 256, 272, 288, 306, 309, 320, 340, 360, 384, 408, 412, 480, 510, 515, 544, 576, 612, 618, 640, 680, 720, 765, 768, 816, 824, 927, 960, 1020, 1030, 1088, 1152, 1224, 1236, 1280, 1360, 1440, 1530, 1545, 1632, 1648, 1751, 1854, 1920, 2040, 2060, 2176, 2304, 2448, 2472, 2720, 2880, 3060, 3090, 3264, 3296, 3502, 3708, 3840, 4080, 4120, 4352, 4635, 4896, 4944, 5253, 5440, 5760, 6120, 6180, 6528, 6592, 7004, 7416, 8160, 8240, 8755, 9270, 9792, 9888, 10506, 10880, 11520, 12240, 12360, 13056, 13184, 14008, 14832, 15759, 16320, 16480, 17510, 18540, 19584, 19776, 21012, 21760, 24480, 24720, 26265, 26368, 28016, 29664, 31518, 32640, 32960, 35020, 37080, 39168, 39552, 42024, 48960, 49440, 52530, 56032, 59328, 63036, 65280, 65920, 70040, 74160, 78795, 79104, 84048, 97920, 98880, 105060, 112064, 118656, 126072, 131840, 140080, 148320, 157590, 168096, 195840, 197760, 210120, 224128, 237312, 252144, 280160, 296640, 315180, 336192, 395520, 420240, 448256, 504288, 560320, 593280, 630360, 672384, 840480, 1008576, 1120640, 1186560, 1260720, 1344768, 1680960, 2017152, 2241280, 2521440, 3361920, 4034304, 5042880, 6723840, 10085760, 20171520]

約数ペア:

[(1, 20171520), (2, 10085760), (3, 6723840), (4, 5042880), (5, 4034304), (6, 3361920), (8, 2521440), (9, 2241280), (10, 2017152), (12, 1680960), (15, 1344768), (16, 1260720), (17, 1186560), (18, 1120640), (20, 1008576), (24, 840480), (30, 672384), (32, 630360), (34, 593280), (36, 560320), (40, 504288), (45, 448256), (48, 420240), (51, 395520), (60, 336192), (64, 315180), (68, 296640), (72, 280160), (80, 252144), (85, 237312), (90, 224128), (96, 210120), (102, 197760), (103, 195840), (120, 168096), (128, 157590), (136, 148320), (144, 140080), (153, 131840), (160, 126072), (170, 118656), (180, 112064), (192, 105060), (204, 98880), (206, 97920), (240, 84048), (255, 79104), (256, 78795), (272, 74160), (288, 70040), (306, 65920), (309, 65280), (320, 63036), (340, 59328), (360, 56032), (384, 52530), (408, 49440), (412, 48960), (480, 42024), (510, 39552), (515, 39168), (544, 37080), (576, 35020), (612, 32960), (618, 32640), (640, 31518), (680, 29664), (720, 28016), (765, 26368), (768, 26265), (816, 24720), (824, 24480), (927, 21760), (960, 21012), (1020, 19776), (1030, 19584), (1088, 18540), (1152, 17510), (1224, 16480), (1236, 16320), (1280, 15759), (1360, 14832), (1440, 14008), (1530, 13184), (1545, 13056), (1632, 12360), (1648, 12240), (1751, 11520), (1854, 10880), (1920, 10506), (2040, 9888), (2060, 9792), (2176, 9270), (2304, 8755), (2448, 8240), (2472, 8160), (2720, 7416), (2880, 7004), (3060, 6592), (3090, 6528), (3264, 6180), (3296, 6120), (3502, 5760), (3708, 5440), (3840, 5253), (4080, 4944), (4120, 4896), (4352, 4635)]