388617080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{709}}^1$

素因数の和:984

約数の個数: 64

約数和(自身を含む): 892555200

約数和(自身を除く): 503938120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 193, 284, 355, 386, 568, 709, 710, 772, 965, 1418, 1420, 1544, 1930, 2836, 2840, 3545, 3860, 5672, 7090, 7720, 13703, 14180, 27406, 28360, 50339, 54812, 68515, 100678, 109624, 136837, 137030, 201356, 251695, 273674, 274060, 402712, 503390, 547348, 548120, 684185, 1006780, 1094696, 1368370, 2013560, 2736740, 5473480, 9715427, 19430854, 38861708, 48577135, 77723416, 97154270, 194308540, 388617080]

約数ペア:

[(1, 388617080), (2, 194308540), (4, 97154270), (5, 77723416), (8, 48577135), (10, 38861708), (20, 19430854), (40, 9715427), (71, 5473480), (142, 2736740), (193, 2013560), (284, 1368370), (355, 1094696), (386, 1006780), (568, 684185), (709, 548120), (710, 547348), (772, 503390), (965, 402712), (1418, 274060), (1420, 273674), (1544, 251695), (1930, 201356), (2836, 137030), (2840, 136837), (3545, 109624), (3860, 100678), (5672, 68515), (7090, 54812), (7720, 50339), (13703, 28360), (14180, 27406)]