257259240

素因数分解:

$2^3\times 3^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:251

約数の個数: 384

約数和(自身を含む): 1048320000

約数和(自身を除く): 791060760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 81, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 162, 168, 171, 180, 189, 190, 199, 210, 216, 228, 243, 252, 266, 270, 280, 285, 315, 324, 342, 360, 378, 380, 398, 399, 405, 420, 456, 486, 504, 513, 532, 540, 567, 570, 597, 630, 648, 665, 684, 756, 760, 796, 798, 810, 840, 855, 945, 972, 995, 1026, 1064, 1080, 1134, 1140, 1194, 1197, 1215, 1260, 1330, 1368, 1393, 1512, 1539, 1592, 1596, 1620, 1701, 1710, 1791, 1890, 1944, 1990, 1995, 2052, 2268, 2280, 2388, 2394, 2430, 2520, 2565, 2660, 2786, 2835, 2985, 3078, 3192, 3240, 3402, 3420, 3582, 3591, 3780, 3781, 3980, 3990, 4104, 4179, 4536, 4617, 4776, 4788, 4860, 5130, 5320, 5373, 5572, 5670, 5970, 5985, 6156, 6804, 6840, 6965, 7164, 7182, 7560, 7562, 7695, 7960, 7980, 8358, 8505, 8955, 9234, 9576, 9720, 10260, 10746, 10773, 11144, 11340, 11343, 11940, 11970, 12312, 12537, 13608, 13930, 14328, 14364, 15124, 15390, 15960, 16119, 16716, 17010, 17910, 17955, 18468, 18905, 20520, 20895, 21492, 21546, 22680, 22686, 23085, 23880, 23940, 25074, 26467, 26865, 27860, 28728, 30248, 30780, 32238, 32319, 33432, 34020, 34029, 35820, 35910, 36936, 37611, 37810, 41790, 42984, 43092, 45372, 46170, 47880, 48357, 50148, 52934, 53730, 53865, 55720, 56715, 61560, 62685, 64476, 64638, 68040, 68058, 71640, 71820, 75222, 75620, 79401, 80595, 83580, 86184, 90744, 92340, 96714, 100296, 102087, 105868, 107460, 107730, 112833, 113430, 125370, 128952, 129276, 132335, 136116, 143640, 150444, 151240, 158802, 161190, 161595, 167160, 170145, 184680, 188055, 193428, 204174, 211736, 214920, 215460, 225666, 226860, 238203, 241785, 250740, 258552, 264670, 272232, 300888, 306261, 317604, 322380, 323190, 338499, 340290, 376110, 386856, 397005, 408348, 430920, 451332, 453720, 476406, 483570, 501480, 510435, 529340, 564165, 612522, 635208, 644760, 646380, 676998, 680580, 714609, 752220, 794010, 816696, 902664, 918783, 952812, 967140, 1020870, 1058680, 1128330, 1191015, 1225044, 1292760, 1353996, 1361160, 1429218, 1504440, 1531305, 1588020, 1692495, 1837566, 1905624, 1934280, 2041740, 2143827, 2256660, 2382030, 2450088, 2707992, 2858436, 3062610, 3176040, 3384990, 3573045, 3675132, 4083480, 4287654, 4513320, 4593915, 4764060, 5716872, 6125220, 6431481, 6769980, 7146090, 7350264, 8575308, 9187830, 9528120, 10719135, 12250440, 12862962, 13539960, 14292180, 17150616, 18375660, 21438270, 25725924, 28584360, 32157405, 36751320, 42876540, 51451848, 64314810, 85753080, 128629620, 257259240]

約数ペア:

[(1, 257259240), (2, 128629620), (3, 85753080), (4, 64314810), (5, 51451848), (6, 42876540), (7, 36751320), (8, 32157405), (9, 28584360), (10, 25725924), (12, 21438270), (14, 18375660), (15, 17150616), (18, 14292180), (19, 13539960), (20, 12862962), (21, 12250440), (24, 10719135), (27, 9528120), (28, 9187830), (30, 8575308), (35, 7350264), (36, 7146090), (38, 6769980), (40, 6431481), (42, 6125220), (45, 5716872), (54, 4764060), (56, 4593915), (57, 4513320), (60, 4287654), (63, 4083480), (70, 3675132), (72, 3573045), (76, 3384990), (81, 3176040), (84, 3062610), (90, 2858436), (95, 2707992), (105, 2450088), (108, 2382030), (114, 2256660), (120, 2143827), (126, 2041740), (133, 1934280), (135, 1905624), (140, 1837566), (152, 1692495), (162, 1588020), (168, 1531305), (171, 1504440), (180, 1429218), (189, 1361160), (190, 1353996), (199, 1292760), (210, 1225044), (216, 1191015), (228, 1128330), (243, 1058680), (252, 1020870), (266, 967140), (270, 952812), (280, 918783), (285, 902664), (315, 816696), (324, 794010), (342, 752220), (360, 714609), (378, 680580), (380, 676998), (398, 646380), (399, 644760), (405, 635208), (420, 612522), (456, 564165), (486, 529340), (504, 510435), (513, 501480), (532, 483570), (540, 476406), (567, 453720), (570, 451332), (597, 430920), (630, 408348), (648, 397005), (665, 386856), (684, 376110), (756, 340290), (760, 338499), (796, 323190), (798, 322380), (810, 317604), (840, 306261), (855, 300888), (945, 272232), (972, 264670), (995, 258552), (1026, 250740), (1064, 241785), (1080, 238203), (1134, 226860), (1140, 225666), (1194, 215460), (1197, 214920), (1215, 211736), (1260, 204174), (1330, 193428), (1368, 188055), (1393, 184680), (1512, 170145), (1539, 167160), (1592, 161595), (1596, 161190), (1620, 158802), (1701, 151240), (1710, 150444), (1791, 143640), (1890, 136116), (1944, 132335), (1990, 129276), (1995, 128952), (2052, 125370), (2268, 113430), (2280, 112833), (2388, 107730), (2394, 107460), (2430, 105868), (2520, 102087), (2565, 100296), (2660, 96714), (2786, 92340), (2835, 90744), (2985, 86184), (3078, 83580), (3192, 80595), (3240, 79401), (3402, 75620), (3420, 75222), (3582, 71820), (3591, 71640), (3780, 68058), (3781, 68040), (3980, 64638), (3990, 64476), (4104, 62685), (4179, 61560), (4536, 56715), (4617, 55720), (4776, 53865), (4788, 53730), (4860, 52934), (5130, 50148), (5320, 48357), (5373, 47880), (5572, 46170), (5670, 45372), (5970, 43092), (5985, 42984), (6156, 41790), (6804, 37810), (6840, 37611), (6965, 36936), (7164, 35910), (7182, 35820), (7560, 34029), (7562, 34020), (7695, 33432), (7960, 32319), (7980, 32238), (8358, 30780), (8505, 30248), (8955, 28728), (9234, 27860), (9576, 26865), (9720, 26467), (10260, 25074), (10746, 23940), (10773, 23880), (11144, 23085), (11340, 22686), (11343, 22680), (11940, 21546), (11970, 21492), (12312, 20895), (12537, 20520), (13608, 18905), (13930, 18468), (14328, 17955), (14364, 17910), (15124, 17010), (15390, 16716), (15960, 16119)]