256425552

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 180

約数和(自身を含む): 792354420

約数和(自身を除く): 535928868

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 31, 34, 36, 48, 51, 62, 68, 72, 93, 102, 109, 124, 136, 144, 153, 186, 204, 218, 248, 272, 279, 306, 327, 372, 408, 436, 496, 527, 558, 612, 654, 744, 816, 872, 961, 981, 1054, 1116, 1224, 1308, 1488, 1581, 1744, 1853, 1922, 1962, 2108, 2232, 2448, 2616, 2883, 3162, 3379, 3706, 3844, 3924, 4216, 4464, 4743, 5232, 5559, 5766, 6324, 6758, 7412, 7688, 7848, 8432, 8649, 9486, 10137, 11118, 11532, 12648, 13516, 14824, 15376, 15696, 16337, 16677, 17298, 18972, 20274, 22236, 23064, 25296, 27032, 29648, 30411, 32674, 33354, 34596, 37944, 40548, 44472, 46128, 49011, 54064, 57443, 60822, 65348, 66708, 69192, 75888, 81096, 88944, 98022, 104749, 114886, 121644, 130696, 133416, 138384, 147033, 162192, 172329, 196044, 209498, 229772, 243288, 261392, 266832, 294066, 314247, 344658, 392088, 418996, 459544, 486576, 516987, 588132, 628494, 689316, 784176, 837992, 919088, 942741, 1033974, 1176264, 1256988, 1378632, 1675984, 1780733, 1885482, 2067948, 2352528, 2513976, 2757264, 3561466, 3770964, 4135896, 5027952, 5342199, 7122932, 7541928, 8271792, 10684398, 14245864, 15083856, 16026597, 21368796, 28491728, 32053194, 42737592, 64106388, 85475184, 128212776, 256425552]

約数ペア:

[(1, 256425552), (2, 128212776), (3, 85475184), (4, 64106388), (6, 42737592), (8, 32053194), (9, 28491728), (12, 21368796), (16, 16026597), (17, 15083856), (18, 14245864), (24, 10684398), (31, 8271792), (34, 7541928), (36, 7122932), (48, 5342199), (51, 5027952), (62, 4135896), (68, 3770964), (72, 3561466), (93, 2757264), (102, 2513976), (109, 2352528), (124, 2067948), (136, 1885482), (144, 1780733), (153, 1675984), (186, 1378632), (204, 1256988), (218, 1176264), (248, 1033974), (272, 942741), (279, 919088), (306, 837992), (327, 784176), (372, 689316), (408, 628494), (436, 588132), (496, 516987), (527, 486576), (558, 459544), (612, 418996), (654, 392088), (744, 344658), (816, 314247), (872, 294066), (961, 266832), (981, 261392), (1054, 243288), (1116, 229772), (1224, 209498), (1308, 196044), (1488, 172329), (1581, 162192), (1744, 147033), (1853, 138384), (1922, 133416), (1962, 130696), (2108, 121644), (2232, 114886), (2448, 104749), (2616, 98022), (2883, 88944), (3162, 81096), (3379, 75888), (3706, 69192), (3844, 66708), (3924, 65348), (4216, 60822), (4464, 57443), (4743, 54064), (5232, 49011), (5559, 46128), (5766, 44472), (6324, 40548), (6758, 37944), (7412, 34596), (7688, 33354), (7848, 32674), (8432, 30411), (8649, 29648), (9486, 27032), (10137, 25296), (11118, 23064), (11532, 22236), (12648, 20274), (13516, 18972), (14824, 17298), (15376, 16677), (15696, 16337)]