20164056440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{256019}}^1$

素因数の和:256220

約数の個数: 64

約数和(自身を含む): 49770288000

約数和(自身を除く): 29606231560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 179, 220, 358, 440, 716, 895, 1432, 1790, 1969, 3580, 3938, 7160, 7876, 9845, 15752, 19690, 39380, 78760, 256019, 512038, 1024076, 1280095, 2048152, 2560190, 2816209, 5120380, 5632418, 10240760, 11264836, 14081045, 22529672, 28162090, 45827401, 56324180, 91654802, 112648360, 183309604, 229137005, 366619208, 458274010, 504101411, 916548020, 1008202822, 1833096040, 2016405644, 2520507055, 4032811288, 5041014110, 10082028220, 20164056440]

約数ペア:

[(1, 20164056440), (2, 10082028220), (4, 5041014110), (5, 4032811288), (8, 2520507055), (10, 2016405644), (11, 1833096040), (20, 1008202822), (22, 916548020), (40, 504101411), (44, 458274010), (55, 366619208), (88, 229137005), (110, 183309604), (179, 112648360), (220, 91654802), (358, 56324180), (440, 45827401), (716, 28162090), (895, 22529672), (1432, 14081045), (1790, 11264836), (1969, 10240760), (3580, 5632418), (3938, 5120380), (7160, 2816209), (7876, 2560190), (9845, 2048152), (15752, 1280095), (19690, 1024076), (39380, 512038), (78760, 256019)]