160721280

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 256

約数和(自身を含む): 581644800

約数和(自身を除く): 420923520

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, 71, 72, 80, 90, 96, 108, 120, 128, 131, 135, 142, 144, 160, 180, 192, 213, 216, 240, 262, 270, 284, 288, 320, 355, 360, 384, 393, 426, 432, 480, 524, 540, 568, 576, 639, 640, 655, 710, 720, 786, 852, 864, 960, 1048, 1065, 1080, 1136, 1152, 1179, 1278, 1310, 1420, 1440, 1572, 1704, 1728, 1917, 1920, 1965, 2096, 2130, 2160, 2272, 2358, 2556, 2620, 2840, 2880, 3144, 3195, 3408, 3456, 3537, 3834, 3930, 4192, 4260, 4320, 4544, 4716, 5112, 5240, 5680, 5760, 5895, 6288, 6390, 6816, 7074, 7668, 7860, 8384, 8520, 8640, 9088, 9301, 9432, 9585, 10224, 10480, 11360, 11790, 12576, 12780, 13632, 14148, 15336, 15720, 16768, 17040, 17280, 17685, 18602, 18864, 19170, 20448, 20960, 22720, 23580, 25152, 25560, 27264, 27903, 28296, 30672, 31440, 34080, 35370, 37204, 37728, 38340, 40896, 41920, 45440, 46505, 47160, 50304, 51120, 55806, 56592, 61344, 62880, 68160, 70740, 74408, 75456, 76680, 81792, 83709, 83840, 93010, 94320, 102240, 111612, 113184, 122688, 125760, 136320, 139515, 141480, 148816, 150912, 153360, 167418, 186020, 188640, 204480, 223224, 226368, 245376, 251127, 251520, 279030, 282960, 297632, 306720, 334836, 372040, 377280, 408960, 418545, 446448, 452736, 502254, 558060, 565920, 595264, 613440, 669672, 744080, 754560, 837090, 892896, 1004508, 1116120, 1131840, 1190528, 1226880, 1255635, 1339344, 1488160, 1674180, 1785792, 2009016, 2232240, 2263680, 2511270, 2678688, 2976320, 3348360, 3571584, 4018032, 4464480, 5022540, 5357376, 5952640, 6696720, 8036064, 8928960, 10045080, 10714752, 13393440, 16072128, 17857920, 20090160, 26786880, 32144256, 40180320, 53573760, 80360640, 160721280]

約数ペア:

[(1, 160721280), (2, 80360640), (3, 53573760), (4, 40180320), (5, 32144256), (6, 26786880), (8, 20090160), (9, 17857920), (10, 16072128), (12, 13393440), (15, 10714752), (16, 10045080), (18, 8928960), (20, 8036064), (24, 6696720), (27, 5952640), (30, 5357376), (32, 5022540), (36, 4464480), (40, 4018032), (45, 3571584), (48, 3348360), (54, 2976320), (60, 2678688), (64, 2511270), (71, 2263680), (72, 2232240), (80, 2009016), (90, 1785792), (96, 1674180), (108, 1488160), (120, 1339344), (128, 1255635), (131, 1226880), (135, 1190528), (142, 1131840), (144, 1116120), (160, 1004508), (180, 892896), (192, 837090), (213, 754560), (216, 744080), (240, 669672), (262, 613440), (270, 595264), (284, 565920), (288, 558060), (320, 502254), (355, 452736), (360, 446448), (384, 418545), (393, 408960), (426, 377280), (432, 372040), (480, 334836), (524, 306720), (540, 297632), (568, 282960), (576, 279030), (639, 251520), (640, 251127), (655, 245376), (710, 226368), (720, 223224), (786, 204480), (852, 188640), (864, 186020), (960, 167418), (1048, 153360), (1065, 150912), (1080, 148816), (1136, 141480), (1152, 139515), (1179, 136320), (1278, 125760), (1310, 122688), (1420, 113184), (1440, 111612), (1572, 102240), (1704, 94320), (1728, 93010), (1917, 83840), (1920, 83709), (1965, 81792), (2096, 76680), (2130, 75456), (2160, 74408), (2272, 70740), (2358, 68160), (2556, 62880), (2620, 61344), (2840, 56592), (2880, 55806), (3144, 51120), (3195, 50304), (3408, 47160), (3456, 46505), (3537, 45440), (3834, 41920), (3930, 40896), (4192, 38340), (4260, 37728), (4320, 37204), (4544, 35370), (4716, 34080), (5112, 31440), (5240, 30672), (5680, 28296), (5760, 27903), (5895, 27264), (6288, 25560), (6390, 25152), (6816, 23580), (7074, 22720), (7668, 20960), (7860, 20448), (8384, 19170), (8520, 18864), (8640, 18602), (9088, 17685), (9301, 17280), (9432, 17040), (9585, 16768), (10224, 15720), (10480, 15336), (11360, 14148), (11790, 13632), (12576, 12780)]