638588160

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{7919}}^1$

素因数の和:7953

約数の個数: 216

約数和(自身を含む): 2525402880

約数和(自身を除く): 1886814720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 4032, 4480, 5040, 5376, 5760, 6720, 7919, 8064, 8960, 10080, 11520, 13440, 15838, 16128, 20160, 23757, 26880, 31676, 39595, 40320, 47514, 55433, 63352, 71271, 79190, 80640, 95028, 110866, 118785, 126704, 142542, 158380, 166299, 190056, 221732, 237570, 253408, 277165, 285084, 316760, 332598, 356355, 380112, 443464, 475140, 498897, 506816, 554330, 570168, 633520, 665196, 712710, 760224, 831495, 886928, 950280, 997794, 1013632, 1108660, 1140336, 1267040, 1330392, 1425420, 1520448, 1662990, 1773856, 1900560, 1995588, 2027264, 2217320, 2280672, 2494485, 2534080, 2660784, 2850840, 3040896, 3325980, 3547712, 3801120, 3991176, 4434640, 4561344, 4988970, 5068160, 5321568, 5701680, 6081792, 6651960, 7095424, 7602240, 7982352, 8869280, 9122688, 9977940, 10136320, 10643136, 11403360, 13303920, 14190848, 15204480, 15964704, 17738560, 18245376, 19955880, 21286272, 22806720, 26607840, 30408960, 31929408, 35477120, 39911760, 42572544, 45613440, 53215680, 63858816, 70954240, 79823520, 91226880, 106431360, 127717632, 159647040, 212862720, 319294080, 638588160]

約数ペア:

[(1, 638588160), (2, 319294080), (3, 212862720), (4, 159647040), (5, 127717632), (6, 106431360), (7, 91226880), (8, 79823520), (9, 70954240), (10, 63858816), (12, 53215680), (14, 45613440), (15, 42572544), (16, 39911760), (18, 35477120), (20, 31929408), (21, 30408960), (24, 26607840), (28, 22806720), (30, 21286272), (32, 19955880), (35, 18245376), (36, 17738560), (40, 15964704), (42, 15204480), (45, 14190848), (48, 13303920), (56, 11403360), (60, 10643136), (63, 10136320), (64, 9977940), (70, 9122688), (72, 8869280), (80, 7982352), (84, 7602240), (90, 7095424), (96, 6651960), (105, 6081792), (112, 5701680), (120, 5321568), (126, 5068160), (128, 4988970), (140, 4561344), (144, 4434640), (160, 3991176), (168, 3801120), (180, 3547712), (192, 3325980), (210, 3040896), (224, 2850840), (240, 2660784), (252, 2534080), (256, 2494485), (280, 2280672), (288, 2217320), (315, 2027264), (320, 1995588), (336, 1900560), (360, 1773856), (384, 1662990), (420, 1520448), (448, 1425420), (480, 1330392), (504, 1267040), (560, 1140336), (576, 1108660), (630, 1013632), (640, 997794), (672, 950280), (720, 886928), (768, 831495), (840, 760224), (896, 712710), (960, 665196), (1008, 633520), (1120, 570168), (1152, 554330), (1260, 506816), (1280, 498897), (1344, 475140), (1440, 443464), (1680, 380112), (1792, 356355), (1920, 332598), (2016, 316760), (2240, 285084), (2304, 277165), (2520, 253408), (2688, 237570), (2880, 221732), (3360, 190056), (3840, 166299), (4032, 158380), (4480, 142542), (5040, 126704), (5376, 118785), (5760, 110866), (6720, 95028), (7919, 80640), (8064, 79190), (8960, 71271), (10080, 63352), (11520, 55433), (13440, 47514), (15838, 40320), (16128, 39595), (20160, 31676), (23757, 26880)]