138866560

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:388

約数の個数: 128

約数和(自身を含む): 383846400

約数和(自身を除く): 244979840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 139, 140, 160, 223, 224, 278, 280, 320, 446, 448, 556, 560, 640, 695, 892, 896, 973, 1112, 1115, 1120, 1390, 1561, 1784, 1946, 2224, 2230, 2240, 2780, 3122, 3568, 3892, 4448, 4460, 4480, 4865, 5560, 6244, 7136, 7784, 7805, 8896, 8920, 9730, 11120, 12488, 14272, 15568, 15610, 17792, 17840, 19460, 22240, 24976, 28544, 30997, 31136, 31220, 35680, 38920, 44480, 49952, 61994, 62272, 62440, 71360, 77840, 88960, 99904, 123988, 124544, 124880, 142720, 154985, 155680, 199808, 216979, 247976, 249760, 309970, 311360, 433958, 495952, 499520, 619940, 622720, 867916, 991904, 999040, 1084895, 1239880, 1735832, 1983808, 2169790, 2479760, 3471664, 3967616, 4339580, 4959520, 6943328, 8679160, 9919040, 13886656, 17358320, 19838080, 27773312, 34716640, 69433280, 138866560]

約数ペア:

[(1, 138866560), (2, 69433280), (4, 34716640), (5, 27773312), (7, 19838080), (8, 17358320), (10, 13886656), (14, 9919040), (16, 8679160), (20, 6943328), (28, 4959520), (32, 4339580), (35, 3967616), (40, 3471664), (56, 2479760), (64, 2169790), (70, 1983808), (80, 1735832), (112, 1239880), (128, 1084895), (139, 999040), (140, 991904), (160, 867916), (223, 622720), (224, 619940), (278, 499520), (280, 495952), (320, 433958), (446, 311360), (448, 309970), (556, 249760), (560, 247976), (640, 216979), (695, 199808), (892, 155680), (896, 154985), (973, 142720), (1112, 124880), (1115, 124544), (1120, 123988), (1390, 99904), (1561, 88960), (1784, 77840), (1946, 71360), (2224, 62440), (2230, 62272), (2240, 61994), (2780, 49952), (3122, 44480), (3568, 38920), (3892, 35680), (4448, 31220), (4460, 31136), (4480, 30997), (4865, 28544), (5560, 24976), (6244, 22240), (7136, 19460), (7784, 17840), (7805, 17792), (8896, 15610), (8920, 15568), (9730, 14272), (11120, 12488)]