257048280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{743}}^1$

素因数の和:822

約数の個数: 144

約数和(自身を含む): 864386640

約数和(自身を除く): 607338360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 743, 744, 930, 961, 1116, 1240, 1395, 1486, 1860, 1922, 2229, 2232, 2790, 2883, 2972, 3715, 3720, 3844, 4458, 4805, 5580, 5766, 5944, 6687, 7430, 7688, 8649, 8916, 9610, 11145, 11160, 11532, 13374, 14415, 14860, 17298, 17832, 19220, 22290, 23033, 23064, 26748, 28830, 29720, 33435, 34596, 38440, 43245, 44580, 46066, 53496, 57660, 66870, 69099, 69192, 86490, 89160, 92132, 115165, 115320, 133740, 138198, 172980, 184264, 207297, 230330, 267480, 276396, 345495, 345960, 414594, 460660, 552792, 690990, 714023, 829188, 921320, 1036485, 1381980, 1428046, 1658376, 2072970, 2142069, 2763960, 2856092, 3570115, 4145940, 4284138, 5712184, 6426207, 7140230, 8291880, 8568276, 10710345, 12852414, 14280460, 17136552, 21420690, 25704828, 28560920, 32131035, 42841380, 51409656, 64262070, 85682760, 128524140, 257048280]

約数ペア:

[(1, 257048280), (2, 128524140), (3, 85682760), (4, 64262070), (5, 51409656), (6, 42841380), (8, 32131035), (9, 28560920), (10, 25704828), (12, 21420690), (15, 17136552), (18, 14280460), (20, 12852414), (24, 10710345), (30, 8568276), (31, 8291880), (36, 7140230), (40, 6426207), (45, 5712184), (60, 4284138), (62, 4145940), (72, 3570115), (90, 2856092), (93, 2763960), (120, 2142069), (124, 2072970), (155, 1658376), (180, 1428046), (186, 1381980), (248, 1036485), (279, 921320), (310, 829188), (360, 714023), (372, 690990), (465, 552792), (558, 460660), (620, 414594), (743, 345960), (744, 345495), (930, 276396), (961, 267480), (1116, 230330), (1240, 207297), (1395, 184264), (1486, 172980), (1860, 138198), (1922, 133740), (2229, 115320), (2232, 115165), (2790, 92132), (2883, 89160), (2972, 86490), (3715, 69192), (3720, 69099), (3844, 66870), (4458, 57660), (4805, 53496), (5580, 46066), (5766, 44580), (5944, 43245), (6687, 38440), (7430, 34596), (7688, 33435), (8649, 29720), (8916, 28830), (9610, 26748), (11145, 23064), (11160, 23033), (11532, 22290), (13374, 19220), (14415, 17832), (14860, 17298)]