1780016

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:729

約数の個数: 40

約数和(自身を含む): 4118784

約数和(自身を除く): 2338768

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 691, 1288, 1382, 2576, 2764, 4837, 5528, 9674, 11056, 15893, 19348, 31786, 38696, 63572, 77392, 111251, 127144, 222502, 254288, 445004, 890008, 1780016]

約数ペア:

[(1, 1780016), (2, 890008), (4, 445004), (7, 254288), (8, 222502), (14, 127144), (16, 111251), (23, 77392), (28, 63572), (46, 38696), (56, 31786), (92, 19348), (112, 15893), (161, 11056), (184, 9674), (322, 5528), (368, 4837), (644, 2764), (691, 2576), (1288, 1382)]