20161610925

素因数分解:

$3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{21737}}^1$

素因数の和:21982

約数の個数: 48

約数和(自身を含む): 33963451200

約数和(自身を除く): 13801840275

約数列:

[1, 3, 5, 15, 25, 75, 83, 149, 249, 415, 447, 745, 1245, 2075, 2235, 3725, 6225, 11175, 12367, 21737, 37101, 61835, 65211, 108685, 185505, 309175, 326055, 543425, 927525, 1630275, 1804171, 3238813, 5412513, 9020855, 9716439, 16194065, 27062565, 45104275, 48582195, 80970325, 135312825, 242910975, 268821479, 806464437, 1344107395, 4032322185, 6720536975, 20161610925]

約数ペア:

[(1, 20161610925), (3, 6720536975), (5, 4032322185), (15, 1344107395), (25, 806464437), (75, 268821479), (83, 242910975), (149, 135312825), (249, 80970325), (415, 48582195), (447, 45104275), (745, 27062565), (1245, 16194065), (2075, 9716439), (2235, 9020855), (3725, 5412513), (6225, 3238813), (11175, 1804171), (12367, 1630275), (21737, 927525), (37101, 543425), (61835, 326055), (65211, 309175), (108685, 185505)]