257307120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2687}}^1$

素因数の和:2732

約数の個数: 240

約数和(自身を含む): 1039933440

約数和(自身を除く): 782626320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 399, 420, 456, 504, 532, 560, 570, 630, 665, 684, 720, 760, 798, 840, 855, 912, 1008, 1064, 1140, 1197, 1260, 1330, 1368, 1520, 1596, 1680, 1710, 1995, 2128, 2280, 2394, 2520, 2660, 2687, 2736, 3192, 3420, 3990, 4560, 4788, 5040, 5320, 5374, 5985, 6384, 6840, 7980, 8061, 9576, 10640, 10748, 11970, 13435, 13680, 15960, 16122, 18809, 19152, 21496, 23940, 24183, 26870, 31920, 32244, 37618, 40305, 42992, 47880, 48366, 51053, 53740, 56427, 64488, 75236, 80610, 94045, 95760, 96732, 102106, 107480, 112854, 120915, 128976, 150472, 153159, 161220, 169281, 188090, 193464, 204212, 214960, 225708, 241830, 255265, 282135, 300944, 306318, 322440, 338562, 357371, 376180, 386928, 408424, 451416, 459477, 483660, 510530, 564270, 612636, 644880, 677124, 714742, 752360, 765795, 816848, 846405, 902832, 918954, 967320, 1021060, 1072113, 1128540, 1225272, 1354248, 1429484, 1504720, 1531590, 1692810, 1786855, 1837908, 1934640, 2042120, 2144226, 2257080, 2297385, 2450544, 2708496, 2858968, 3063180, 3216339, 3385620, 3573710, 3675816, 4084240, 4288452, 4514160, 4594770, 5360565, 5717936, 6126360, 6432678, 6771240, 7147420, 7351632, 8576904, 9189540, 10721130, 12252720, 12865356, 13542480, 14294840, 16081695, 17153808, 18379080, 21442260, 25730712, 28589680, 32163390, 36758160, 42884520, 51461424, 64326780, 85769040, 128653560, 257307120]

約数ペア:

[(1, 257307120), (2, 128653560), (3, 85769040), (4, 64326780), (5, 51461424), (6, 42884520), (7, 36758160), (8, 32163390), (9, 28589680), (10, 25730712), (12, 21442260), (14, 18379080), (15, 17153808), (16, 16081695), (18, 14294840), (19, 13542480), (20, 12865356), (21, 12252720), (24, 10721130), (28, 9189540), (30, 8576904), (35, 7351632), (36, 7147420), (38, 6771240), (40, 6432678), (42, 6126360), (45, 5717936), (48, 5360565), (56, 4594770), (57, 4514160), (60, 4288452), (63, 4084240), (70, 3675816), (72, 3573710), (76, 3385620), (80, 3216339), (84, 3063180), (90, 2858968), (95, 2708496), (105, 2450544), (112, 2297385), (114, 2257080), (120, 2144226), (126, 2042120), (133, 1934640), (140, 1837908), (144, 1786855), (152, 1692810), (168, 1531590), (171, 1504720), (180, 1429484), (190, 1354248), (210, 1225272), (228, 1128540), (240, 1072113), (252, 1021060), (266, 967320), (280, 918954), (285, 902832), (304, 846405), (315, 816848), (336, 765795), (342, 752360), (360, 714742), (380, 677124), (399, 644880), (420, 612636), (456, 564270), (504, 510530), (532, 483660), (560, 459477), (570, 451416), (630, 408424), (665, 386928), (684, 376180), (720, 357371), (760, 338562), (798, 322440), (840, 306318), (855, 300944), (912, 282135), (1008, 255265), (1064, 241830), (1140, 225708), (1197, 214960), (1260, 204212), (1330, 193464), (1368, 188090), (1520, 169281), (1596, 161220), (1680, 153159), (1710, 150472), (1995, 128976), (2128, 120915), (2280, 112854), (2394, 107480), (2520, 102106), (2660, 96732), (2687, 95760), (2736, 94045), (3192, 80610), (3420, 75236), (3990, 64488), (4560, 56427), (4788, 53740), (5040, 51053), (5320, 48366), (5374, 47880), (5985, 42992), (6384, 40305), (6840, 37618), (7980, 32244), (8061, 31920), (9576, 26870), (10640, 24183), (10748, 23940), (11970, 21496), (13435, 19152), (13680, 18809), (15960, 16122)]