256740660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1021}}^1$

素因数の和:1174

約数の個数: 144

約数和(自身を含む): 857106432

約数和(自身を除く): 600365772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 127, 132, 165, 180, 198, 220, 254, 330, 381, 396, 495, 508, 635, 660, 762, 990, 1021, 1143, 1270, 1397, 1524, 1905, 1980, 2042, 2286, 2540, 2794, 3063, 3810, 4084, 4191, 4572, 5105, 5588, 5715, 6126, 6985, 7620, 8382, 9189, 10210, 11231, 11430, 12252, 12573, 13970, 15315, 16764, 18378, 20420, 20955, 22462, 22860, 25146, 27940, 30630, 33693, 36756, 41910, 44924, 45945, 50292, 56155, 61260, 62865, 67386, 83820, 91890, 101079, 112310, 125730, 129667, 134772, 168465, 183780, 202158, 224620, 251460, 259334, 336930, 389001, 404316, 505395, 518668, 648335, 673860, 778002, 1010790, 1167003, 1296670, 1426337, 1556004, 1945005, 2021580, 2334006, 2593340, 2852674, 3890010, 4279011, 4668012, 5705348, 5835015, 7131685, 7780020, 8558022, 11670030, 12837033, 14263370, 17116044, 21395055, 23340060, 25674066, 28526740, 42790110, 51348132, 64185165, 85580220, 128370330, 256740660]

約数ペア:

[(1, 256740660), (2, 128370330), (3, 85580220), (4, 64185165), (5, 51348132), (6, 42790110), (9, 28526740), (10, 25674066), (11, 23340060), (12, 21395055), (15, 17116044), (18, 14263370), (20, 12837033), (22, 11670030), (30, 8558022), (33, 7780020), (36, 7131685), (44, 5835015), (45, 5705348), (55, 4668012), (60, 4279011), (66, 3890010), (90, 2852674), (99, 2593340), (110, 2334006), (127, 2021580), (132, 1945005), (165, 1556004), (180, 1426337), (198, 1296670), (220, 1167003), (254, 1010790), (330, 778002), (381, 673860), (396, 648335), (495, 518668), (508, 505395), (635, 404316), (660, 389001), (762, 336930), (990, 259334), (1021, 251460), (1143, 224620), (1270, 202158), (1397, 183780), (1524, 168465), (1905, 134772), (1980, 129667), (2042, 125730), (2286, 112310), (2540, 101079), (2794, 91890), (3063, 83820), (3810, 67386), (4084, 62865), (4191, 61260), (4572, 56155), (5105, 50292), (5588, 45945), (5715, 44924), (6126, 41910), (6985, 36756), (7620, 33693), (8382, 30630), (9189, 27940), (10210, 25146), (11231, 22860), (11430, 22462), (12252, 20955), (12573, 20420), (13970, 18378), (15315, 16764)]