199356520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{1601}}^1$

素因数の和:1906

約数の個数: 64

約数和(自身を含む): 491365440

約数和(自身を除く): 292008920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 283, 440, 566, 1132, 1415, 1601, 2264, 2830, 3113, 3202, 5660, 6226, 6404, 8005, 11320, 12452, 12808, 15565, 16010, 17611, 24904, 31130, 32020, 35222, 62260, 64040, 70444, 88055, 124520, 140888, 176110, 352220, 453083, 704440, 906166, 1812332, 2265415, 3624664, 4530830, 4983913, 9061660, 9967826, 18123320, 19935652, 24919565, 39871304, 49839130, 99678260, 199356520]

約数ペア:

[(1, 199356520), (2, 99678260), (4, 49839130), (5, 39871304), (8, 24919565), (10, 19935652), (11, 18123320), (20, 9967826), (22, 9061660), (40, 4983913), (44, 4530830), (55, 3624664), (88, 2265415), (110, 1812332), (220, 906166), (283, 704440), (440, 453083), (566, 352220), (1132, 176110), (1415, 140888), (1601, 124520), (2264, 88055), (2830, 70444), (3113, 64040), (3202, 62260), (5660, 35222), (6226, 32020), (6404, 31130), (8005, 24904), (11320, 17611), (12452, 16010), (12808, 15565)]