81975808

素因数分解:

$2^9\times {\mathrm{29}}^1\times {\mathrm{5521}}^1$

素因数の和:5568

約数の個数: 40

約数和(自身を含む): 169470180

約数和(自身を除く): 87494372

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 464, 512, 928, 1856, 3712, 5521, 7424, 11042, 14848, 22084, 44168, 88336, 160109, 176672, 320218, 353344, 640436, 706688, 1280872, 1413376, 2561744, 2826752, 5123488, 10246976, 20493952, 40987904, 81975808]

約数ペア:

[(1, 81975808), (2, 40987904), (4, 20493952), (8, 10246976), (16, 5123488), (29, 2826752), (32, 2561744), (58, 1413376), (64, 1280872), (116, 706688), (128, 640436), (232, 353344), (256, 320218), (464, 176672), (512, 160109), (928, 88336), (1856, 44168), (3712, 22084), (5521, 14848), (7424, 11042)]