256985784

素因数分解:

$2^3\times 3^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1163}}^1$

素因数の和:1223

約数の個数: 160

約数和(自身を含む): 811261440

約数和(自身を除く): 554275656

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 31, 33, 36, 44, 54, 62, 66, 72, 81, 88, 93, 99, 108, 124, 132, 162, 186, 198, 216, 248, 264, 279, 297, 324, 341, 372, 396, 558, 594, 648, 682, 744, 792, 837, 891, 1023, 1116, 1163, 1188, 1364, 1674, 1782, 2046, 2232, 2326, 2376, 2511, 2728, 3069, 3348, 3489, 3564, 4092, 4652, 5022, 6138, 6696, 6978, 7128, 8184, 9207, 9304, 10044, 10467, 12276, 12793, 13956, 18414, 20088, 20934, 24552, 25586, 27621, 27912, 31401, 36053, 36828, 38379, 41868, 51172, 55242, 62802, 72106, 73656, 76758, 83736, 94203, 102344, 108159, 110484, 115137, 125604, 144212, 153516, 188406, 216318, 220968, 230274, 251208, 288424, 307032, 324477, 345411, 376812, 396583, 432636, 460548, 648954, 690822, 753624, 793166, 865272, 921096, 973431, 1036233, 1189749, 1297908, 1381644, 1586332, 1946862, 2072466, 2379498, 2595816, 2763288, 2920293, 3172664, 3569247, 3893724, 4144932, 4758996, 5840586, 7138494, 7787448, 8289864, 9517992, 10707741, 11681172, 14276988, 21415482, 23362344, 28553976, 32123223, 42830964, 64246446, 85661928, 128492892, 256985784]

約数ペア:

[(1, 256985784), (2, 128492892), (3, 85661928), (4, 64246446), (6, 42830964), (8, 32123223), (9, 28553976), (11, 23362344), (12, 21415482), (18, 14276988), (22, 11681172), (24, 10707741), (27, 9517992), (31, 8289864), (33, 7787448), (36, 7138494), (44, 5840586), (54, 4758996), (62, 4144932), (66, 3893724), (72, 3569247), (81, 3172664), (88, 2920293), (93, 2763288), (99, 2595816), (108, 2379498), (124, 2072466), (132, 1946862), (162, 1586332), (186, 1381644), (198, 1297908), (216, 1189749), (248, 1036233), (264, 973431), (279, 921096), (297, 865272), (324, 793166), (341, 753624), (372, 690822), (396, 648954), (558, 460548), (594, 432636), (648, 396583), (682, 376812), (744, 345411), (792, 324477), (837, 307032), (891, 288424), (1023, 251208), (1116, 230274), (1163, 220968), (1188, 216318), (1364, 188406), (1674, 153516), (1782, 144212), (2046, 125604), (2232, 115137), (2326, 110484), (2376, 108159), (2511, 102344), (2728, 94203), (3069, 83736), (3348, 76758), (3489, 73656), (3564, 72106), (4092, 62802), (4652, 55242), (5022, 51172), (6138, 41868), (6696, 38379), (6978, 36828), (7128, 36053), (8184, 31401), (9207, 27912), (9304, 27621), (10044, 25586), (10467, 24552), (12276, 20934), (12793, 20088), (13956, 18414)]