259648256

素因数分解:

$2^8\times 7^3\times {\mathrm{2957}}^1$

素因数の和:2994

約数の個数: 72

約数和(自身を含む): 604615200

約数和(自身を除く): 344966944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 343, 392, 448, 686, 784, 896, 1372, 1568, 1792, 2744, 2957, 3136, 5488, 5914, 6272, 10976, 11828, 12544, 20699, 21952, 23656, 41398, 43904, 47312, 82796, 87808, 94624, 144893, 165592, 189248, 289786, 331184, 378496, 579572, 662368, 756992, 1014251, 1159144, 1324736, 2028502, 2318288, 2649472, 4057004, 4636576, 5298944, 8114008, 9273152, 16228016, 18546304, 32456032, 37092608, 64912064, 129824128, 259648256]

約数ペア:

[(1, 259648256), (2, 129824128), (4, 64912064), (7, 37092608), (8, 32456032), (14, 18546304), (16, 16228016), (28, 9273152), (32, 8114008), (49, 5298944), (56, 4636576), (64, 4057004), (98, 2649472), (112, 2318288), (128, 2028502), (196, 1324736), (224, 1159144), (256, 1014251), (343, 756992), (392, 662368), (448, 579572), (686, 378496), (784, 331184), (896, 289786), (1372, 189248), (1568, 165592), (1792, 144893), (2744, 94624), (2957, 87808), (3136, 82796), (5488, 47312), (5914, 43904), (6272, 41398), (10976, 23656), (11828, 21952), (12544, 20699)]