27839980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4231}}^1$

素因数の和:4294

約数の個数: 48

約数和(自身を含む): 68253696

約数和(自身を除く): 40413716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 4231, 6580, 8462, 16924, 21155, 29617, 42310, 59234, 84620, 118468, 148085, 198857, 296170, 397714, 592340, 795428, 994285, 1391999, 1988570, 2783998, 3977140, 5567996, 6959995, 13919990, 27839980]

約数ペア:

[(1, 27839980), (2, 13919990), (4, 6959995), (5, 5567996), (7, 3977140), (10, 2783998), (14, 1988570), (20, 1391999), (28, 994285), (35, 795428), (47, 592340), (70, 397714), (94, 296170), (140, 198857), (188, 148085), (235, 118468), (329, 84620), (470, 59234), (658, 42310), (940, 29617), (1316, 21155), (1645, 16924), (3290, 8462), (4231, 6580)]