20653568

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:167

約数の個数: 80

約数和(自身を含む): 46403280

約数和(自身を除く): 25749712

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 107, 116, 128, 208, 214, 232, 256, 377, 416, 428, 464, 512, 754, 832, 856, 928, 1391, 1508, 1664, 1712, 1856, 2782, 3016, 3103, 3328, 3424, 3712, 5564, 6032, 6206, 6656, 6848, 7424, 11128, 12064, 12412, 13696, 14848, 22256, 24128, 24824, 27392, 40339, 44512, 48256, 49648, 54784, 80678, 89024, 96512, 99296, 161356, 178048, 193024, 198592, 322712, 356096, 397184, 645424, 712192, 794368, 1290848, 1588736, 2581696, 5163392, 10326784, 20653568]

約数ペア:

[(1, 20653568), (2, 10326784), (4, 5163392), (8, 2581696), (13, 1588736), (16, 1290848), (26, 794368), (29, 712192), (32, 645424), (52, 397184), (58, 356096), (64, 322712), (104, 198592), (107, 193024), (116, 178048), (128, 161356), (208, 99296), (214, 96512), (232, 89024), (256, 80678), (377, 54784), (416, 49648), (428, 48256), (464, 44512), (512, 40339), (754, 27392), (832, 24824), (856, 24128), (928, 22256), (1391, 14848), (1508, 13696), (1664, 12412), (1712, 12064), (1856, 11128), (2782, 7424), (3016, 6848), (3103, 6656), (3328, 6206), (3424, 6032), (3712, 5564)]