257719680

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1$

素因数の和:569

約数の個数: 192

約数和(自身を含む): 900778320

約数和(自身を除く): 643058640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 101, 120, 128, 144, 160, 180, 192, 202, 240, 288, 303, 320, 360, 384, 404, 443, 480, 505, 576, 606, 640, 720, 808, 886, 909, 960, 1010, 1152, 1212, 1329, 1440, 1515, 1616, 1772, 1818, 1920, 2020, 2215, 2424, 2658, 2880, 3030, 3232, 3544, 3636, 3987, 4040, 4430, 4545, 4848, 5316, 5760, 6060, 6464, 6645, 7088, 7272, 7974, 8080, 8860, 9090, 9696, 10632, 12120, 12928, 13290, 14176, 14544, 15948, 16160, 17720, 18180, 19392, 19935, 21264, 24240, 26580, 28352, 29088, 31896, 32320, 35440, 36360, 38784, 39870, 42528, 44743, 48480, 53160, 56704, 58176, 63792, 64640, 70880, 72720, 79740, 85056, 89486, 96960, 106320, 116352, 127584, 134229, 141760, 145440, 159480, 170112, 178972, 193920, 212640, 223715, 255168, 268458, 283520, 290880, 318960, 357944, 402687, 425280, 447430, 510336, 536916, 581760, 637920, 671145, 715888, 805374, 850560, 894860, 1073832, 1275840, 1342290, 1431776, 1610748, 1789720, 2013435, 2147664, 2551680, 2684580, 2863552, 3221496, 3579440, 4026870, 4295328, 5369160, 5727104, 6442992, 7158880, 8053740, 8590656, 10738320, 12885984, 14317760, 16107480, 17181312, 21476640, 25771968, 28635520, 32214960, 42953280, 51543936, 64429920, 85906560, 128859840, 257719680]

約数ペア:

[(1, 257719680), (2, 128859840), (3, 85906560), (4, 64429920), (5, 51543936), (6, 42953280), (8, 32214960), (9, 28635520), (10, 25771968), (12, 21476640), (15, 17181312), (16, 16107480), (18, 14317760), (20, 12885984), (24, 10738320), (30, 8590656), (32, 8053740), (36, 7158880), (40, 6442992), (45, 5727104), (48, 5369160), (60, 4295328), (64, 4026870), (72, 3579440), (80, 3221496), (90, 2863552), (96, 2684580), (101, 2551680), (120, 2147664), (128, 2013435), (144, 1789720), (160, 1610748), (180, 1431776), (192, 1342290), (202, 1275840), (240, 1073832), (288, 894860), (303, 850560), (320, 805374), (360, 715888), (384, 671145), (404, 637920), (443, 581760), (480, 536916), (505, 510336), (576, 447430), (606, 425280), (640, 402687), (720, 357944), (808, 318960), (886, 290880), (909, 283520), (960, 268458), (1010, 255168), (1152, 223715), (1212, 212640), (1329, 193920), (1440, 178972), (1515, 170112), (1616, 159480), (1772, 145440), (1818, 141760), (1920, 134229), (2020, 127584), (2215, 116352), (2424, 106320), (2658, 96960), (2880, 89486), (3030, 85056), (3232, 79740), (3544, 72720), (3636, 70880), (3987, 64640), (4040, 63792), (4430, 58176), (4545, 56704), (4848, 53160), (5316, 48480), (5760, 44743), (6060, 42528), (6464, 39870), (6645, 38784), (7088, 36360), (7272, 35440), (7974, 32320), (8080, 31896), (8860, 29088), (9090, 28352), (9696, 26580), (10632, 24240), (12120, 21264), (12928, 19935), (13290, 19392), (14176, 18180), (14544, 17720), (15948, 16160)]