247211484

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{97}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 686647584

約数和(自身を除く): 439436100

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 31, 34, 39, 51, 52, 62, 68, 78, 93, 97, 102, 124, 156, 186, 194, 204, 221, 291, 372, 388, 403, 442, 527, 582, 663, 806, 884, 961, 1054, 1164, 1209, 1261, 1326, 1581, 1612, 1649, 1922, 2108, 2418, 2522, 2652, 2883, 3007, 3162, 3298, 3783, 3844, 4836, 4947, 5044, 5766, 6014, 6324, 6596, 6851, 7566, 9021, 9894, 11532, 12028, 12493, 13702, 15132, 16337, 18042, 19788, 20553, 21437, 24986, 27404, 32674, 36084, 37479, 39091, 41106, 42874, 49011, 49972, 51119, 64311, 65348, 74958, 78182, 82212, 85748, 93217, 98022, 102238, 117273, 128622, 149916, 153357, 156364, 186434, 196044, 204476, 212381, 234546, 257244, 279651, 306714, 372868, 424762, 469092, 559302, 613428, 637143, 664547, 849524, 1118604, 1211821, 1274286, 1329094, 1584689, 1993641, 2423642, 2548572, 2658188, 3169378, 3635463, 3987282, 4754067, 4847284, 6338756, 7270926, 7974564, 9508134, 14541852, 19016268, 20600957, 41201914, 61802871, 82403828, 123605742, 247211484]

約数ペア:

[(1, 247211484), (2, 123605742), (3, 82403828), (4, 61802871), (6, 41201914), (12, 20600957), (13, 19016268), (17, 14541852), (26, 9508134), (31, 7974564), (34, 7270926), (39, 6338756), (51, 4847284), (52, 4754067), (62, 3987282), (68, 3635463), (78, 3169378), (93, 2658188), (97, 2548572), (102, 2423642), (124, 1993641), (156, 1584689), (186, 1329094), (194, 1274286), (204, 1211821), (221, 1118604), (291, 849524), (372, 664547), (388, 637143), (403, 613428), (442, 559302), (527, 469092), (582, 424762), (663, 372868), (806, 306714), (884, 279651), (961, 257244), (1054, 234546), (1164, 212381), (1209, 204476), (1261, 196044), (1326, 186434), (1581, 156364), (1612, 153357), (1649, 149916), (1922, 128622), (2108, 117273), (2418, 102238), (2522, 98022), (2652, 93217), (2883, 85748), (3007, 82212), (3162, 78182), (3298, 74958), (3783, 65348), (3844, 64311), (4836, 51119), (4947, 49972), (5044, 49011), (5766, 42874), (6014, 41106), (6324, 39091), (6596, 37479), (6851, 36084), (7566, 32674), (9021, 27404), (9894, 24986), (11532, 21437), (12028, 20553), (12493, 19788), (13702, 18042), (15132, 16337)]