689289728

素因数分解:

$2^9\times {\mathrm{557}}^1\times {\mathrm{2417}}^1$

素因数の和:2992

約数の個数: 40

約数和(自身を含む): 1380276612

約数和(自身を除く): 690986884

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 557, 1114, 2228, 2417, 4456, 4834, 8912, 9668, 17824, 19336, 35648, 38672, 71296, 77344, 142592, 154688, 285184, 309376, 618752, 1237504, 1346269, 2692538, 5385076, 10770152, 21540304, 43080608, 86161216, 172322432, 344644864, 689289728]

約数ペア:

[(1, 689289728), (2, 344644864), (4, 172322432), (8, 86161216), (16, 43080608), (32, 21540304), (64, 10770152), (128, 5385076), (256, 2692538), (512, 1346269), (557, 1237504), (1114, 618752), (2228, 309376), (2417, 285184), (4456, 154688), (4834, 142592), (8912, 77344), (9668, 71296), (17824, 38672), (19336, 35648)]