256607680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1181}}^1$

素因数の和:1302

約数の個数: 112

約数和(自身を含む): 706136256

約数和(自身を除く): 449528576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 97, 112, 140, 160, 194, 224, 280, 320, 388, 448, 485, 560, 679, 776, 970, 1120, 1181, 1358, 1552, 1940, 2240, 2362, 2716, 3104, 3395, 3880, 4724, 5432, 5905, 6208, 6790, 7760, 8267, 9448, 10864, 11810, 13580, 15520, 16534, 18896, 21728, 23620, 27160, 31040, 33068, 37792, 41335, 43456, 47240, 54320, 66136, 75584, 82670, 94480, 108640, 114557, 132272, 165340, 188960, 217280, 229114, 264544, 330680, 377920, 458228, 529088, 572785, 661360, 801899, 916456, 1145570, 1322720, 1603798, 1832912, 2291140, 2645440, 3207596, 3665824, 4009495, 4582280, 6415192, 7331648, 8018990, 9164560, 12830384, 16037980, 18329120, 25660768, 32075960, 36658240, 51321536, 64151920, 128303840, 256607680]

約数ペア:

[(1, 256607680), (2, 128303840), (4, 64151920), (5, 51321536), (7, 36658240), (8, 32075960), (10, 25660768), (14, 18329120), (16, 16037980), (20, 12830384), (28, 9164560), (32, 8018990), (35, 7331648), (40, 6415192), (56, 4582280), (64, 4009495), (70, 3665824), (80, 3207596), (97, 2645440), (112, 2291140), (140, 1832912), (160, 1603798), (194, 1322720), (224, 1145570), (280, 916456), (320, 801899), (388, 661360), (448, 572785), (485, 529088), (560, 458228), (679, 377920), (776, 330680), (970, 264544), (1120, 229114), (1181, 217280), (1358, 188960), (1552, 165340), (1940, 132272), (2240, 114557), (2362, 108640), (2716, 94480), (3104, 82670), (3395, 75584), (3880, 66136), (4724, 54320), (5432, 47240), (5905, 43456), (6208, 41335), (6790, 37792), (7760, 33068), (8267, 31040), (9448, 27160), (10864, 23620), (11810, 21728), (13580, 18896), (15520, 16534)]