291268328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{661}}^1$

素因数の和:922

約数の個数: 64

約数和(自身を含む): 622809600

約数和(自身を除く): 331541272

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 223, 247, 446, 494, 661, 892, 988, 1322, 1784, 1976, 2644, 2899, 4237, 5288, 5798, 8474, 8593, 11596, 12559, 16948, 17186, 23192, 25118, 33896, 34372, 50236, 55081, 68744, 100472, 110162, 147403, 163267, 220324, 294806, 326534, 440648, 589612, 653068, 1179224, 1306136, 1916239, 2800657, 3832478, 5601314, 7664956, 11202628, 15329912, 22405256, 36408541, 72817082, 145634164, 291268328]

約数ペア:

[(1, 291268328), (2, 145634164), (4, 72817082), (8, 36408541), (13, 22405256), (19, 15329912), (26, 11202628), (38, 7664956), (52, 5601314), (76, 3832478), (104, 2800657), (152, 1916239), (223, 1306136), (247, 1179224), (446, 653068), (494, 589612), (661, 440648), (892, 326534), (988, 294806), (1322, 220324), (1784, 163267), (1976, 147403), (2644, 110162), (2899, 100472), (4237, 68744), (5288, 55081), (5798, 50236), (8474, 34372), (8593, 33896), (11596, 25118), (12559, 23192), (16948, 17186)]