164566640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4139}}^1$

素因数の和:4230

約数の個数: 80

約数和(自身を含む): 443543040

約数和(自身を除く): 278976400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3976, 4139, 4970, 5680, 7952, 8278, 9940, 16556, 19880, 20695, 28973, 33112, 39760, 41390, 57946, 66224, 82780, 115892, 144865, 165560, 231784, 289730, 293869, 331120, 463568, 579460, 587738, 1158920, 1175476, 1469345, 2057083, 2317840, 2350952, 2938690, 4114166, 4701904, 5877380, 8228332, 10285415, 11754760, 16456664, 20570830, 23509520, 32913328, 41141660, 82283320, 164566640]

約数ペア:

[(1, 164566640), (2, 82283320), (4, 41141660), (5, 32913328), (7, 23509520), (8, 20570830), (10, 16456664), (14, 11754760), (16, 10285415), (20, 8228332), (28, 5877380), (35, 4701904), (40, 4114166), (56, 2938690), (70, 2350952), (71, 2317840), (80, 2057083), (112, 1469345), (140, 1175476), (142, 1158920), (280, 587738), (284, 579460), (355, 463568), (497, 331120), (560, 293869), (568, 289730), (710, 231784), (994, 165560), (1136, 144865), (1420, 115892), (1988, 82780), (2485, 66224), (2840, 57946), (3976, 41390), (4139, 39760), (4970, 33112), (5680, 28973), (7952, 20695), (8278, 19880), (9940, 16556)]