71651720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:427

約数の個数: 96

約数和(自身を含む): 189604800

約数和(自身を除く): 117953080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 139, 140, 196, 245, 263, 278, 280, 392, 490, 526, 556, 695, 973, 980, 1052, 1112, 1315, 1390, 1841, 1946, 1960, 2104, 2630, 2780, 3682, 3892, 4865, 5260, 5560, 6811, 7364, 7784, 9205, 9730, 10520, 12887, 13622, 14728, 18410, 19460, 25774, 27244, 34055, 36557, 36820, 38920, 51548, 54488, 64435, 68110, 73114, 73640, 103096, 128870, 136220, 146228, 182785, 255899, 257740, 272440, 292456, 365570, 511798, 515480, 731140, 1023596, 1279495, 1462280, 1791293, 2047192, 2558990, 3582586, 5117980, 7165172, 8956465, 10235960, 14330344, 17912930, 35825860, 71651720]

約数ペア:

[(1, 71651720), (2, 35825860), (4, 17912930), (5, 14330344), (7, 10235960), (8, 8956465), (10, 7165172), (14, 5117980), (20, 3582586), (28, 2558990), (35, 2047192), (40, 1791293), (49, 1462280), (56, 1279495), (70, 1023596), (98, 731140), (139, 515480), (140, 511798), (196, 365570), (245, 292456), (263, 272440), (278, 257740), (280, 255899), (392, 182785), (490, 146228), (526, 136220), (556, 128870), (695, 103096), (973, 73640), (980, 73114), (1052, 68110), (1112, 64435), (1315, 54488), (1390, 51548), (1841, 38920), (1946, 36820), (1960, 36557), (2104, 34055), (2630, 27244), (2780, 25774), (3682, 19460), (3892, 18410), (4865, 14728), (5260, 13622), (5560, 12887), (6811, 10520), (7364, 9730), (7784, 9205)]