140828920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 326229120

約数和(自身を除く): 185400200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 173, 188, 235, 346, 376, 433, 470, 692, 865, 866, 940, 1384, 1730, 1732, 1880, 2165, 3460, 3464, 4330, 6920, 8131, 8660, 16262, 17320, 20351, 32524, 40655, 40702, 65048, 74909, 81310, 81404, 101755, 149818, 162620, 162808, 203510, 299636, 325240, 374545, 407020, 599272, 749090, 814040, 1498180, 2996360, 3520723, 7041446, 14082892, 17603615, 28165784, 35207230, 70414460, 140828920]

約数ペア:

[(1, 140828920), (2, 70414460), (4, 35207230), (5, 28165784), (8, 17603615), (10, 14082892), (20, 7041446), (40, 3520723), (47, 2996360), (94, 1498180), (173, 814040), (188, 749090), (235, 599272), (346, 407020), (376, 374545), (433, 325240), (470, 299636), (692, 203510), (865, 162808), (866, 162620), (940, 149818), (1384, 101755), (1730, 81404), (1732, 81310), (1880, 74909), (2165, 65048), (3460, 40702), (3464, 40655), (4330, 32524), (6920, 20351), (8131, 17320), (8660, 16262)]