639789568

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2417}}^1$

素因数の和:2493

約数の個数: 80

約数和(自身を含む): 1424801664

約数和(自身を除く): 785012096

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 64, 88, 94, 128, 176, 188, 256, 352, 376, 512, 517, 704, 752, 1034, 1408, 1504, 2068, 2417, 2816, 3008, 4136, 4834, 5632, 6016, 8272, 9668, 12032, 16544, 19336, 24064, 26587, 33088, 38672, 53174, 66176, 77344, 106348, 113599, 132352, 154688, 212696, 227198, 264704, 309376, 425392, 454396, 618752, 850784, 908792, 1237504, 1249589, 1701568, 1817584, 2499178, 3403136, 3635168, 4998356, 6806272, 7270336, 9996712, 13612544, 14540672, 19993424, 29081344, 39986848, 58162688, 79973696, 159947392, 319894784, 639789568]

約数ペア:

[(1, 639789568), (2, 319894784), (4, 159947392), (8, 79973696), (11, 58162688), (16, 39986848), (22, 29081344), (32, 19993424), (44, 14540672), (47, 13612544), (64, 9996712), (88, 7270336), (94, 6806272), (128, 4998356), (176, 3635168), (188, 3403136), (256, 2499178), (352, 1817584), (376, 1701568), (512, 1249589), (517, 1237504), (704, 908792), (752, 850784), (1034, 618752), (1408, 454396), (1504, 425392), (2068, 309376), (2417, 264704), (2816, 227198), (3008, 212696), (4136, 154688), (4834, 132352), (5632, 113599), (6016, 106348), (8272, 77344), (9668, 66176), (12032, 53174), (16544, 38672), (19336, 33088), (24064, 26587)]