28323568

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:439

約数の個数: 80

約数和(自身を含む): 69092800

約数和(自身を除く): 40769232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 343, 364, 392, 397, 637, 686, 728, 784, 794, 1274, 1372, 1456, 1588, 2548, 2744, 2779, 3176, 4459, 5096, 5161, 5488, 5558, 6352, 8918, 10192, 10322, 11116, 17836, 19453, 20644, 22232, 35672, 36127, 38906, 41288, 44464, 71344, 72254, 77812, 82576, 136171, 144508, 155624, 252889, 272342, 289016, 311248, 505778, 544684, 578032, 1011556, 1089368, 1770223, 2023112, 2178736, 3540446, 4046224, 7080892, 14161784, 28323568]

約数ペア:

[(1, 28323568), (2, 14161784), (4, 7080892), (7, 4046224), (8, 3540446), (13, 2178736), (14, 2023112), (16, 1770223), (26, 1089368), (28, 1011556), (49, 578032), (52, 544684), (56, 505778), (91, 311248), (98, 289016), (104, 272342), (112, 252889), (182, 155624), (196, 144508), (208, 136171), (343, 82576), (364, 77812), (392, 72254), (397, 71344), (637, 44464), (686, 41288), (728, 38906), (784, 36127), (794, 35672), (1274, 22232), (1372, 20644), (1456, 19453), (1588, 17836), (2548, 11116), (2744, 10322), (2779, 10192), (3176, 8918), (4459, 6352), (5096, 5558), (5161, 5488)]