18588920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{337}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 48185280

約数和(自身を除く): 29596360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 337, 394, 674, 788, 985, 1348, 1379, 1576, 1685, 1970, 2359, 2696, 2758, 3370, 3940, 4718, 5516, 6740, 6895, 7880, 9436, 11032, 11795, 13480, 13790, 18872, 23590, 27580, 47180, 55160, 66389, 94360, 132778, 265556, 331945, 464723, 531112, 663890, 929446, 1327780, 1858892, 2323615, 2655560, 3717784, 4647230, 9294460, 18588920]

約数ペア:

[(1, 18588920), (2, 9294460), (4, 4647230), (5, 3717784), (7, 2655560), (8, 2323615), (10, 1858892), (14, 1327780), (20, 929446), (28, 663890), (35, 531112), (40, 464723), (56, 331945), (70, 265556), (140, 132778), (197, 94360), (280, 66389), (337, 55160), (394, 47180), (674, 27580), (788, 23590), (985, 18872), (1348, 13790), (1379, 13480), (1576, 11795), (1685, 11032), (1970, 9436), (2359, 7880), (2696, 6895), (2758, 6740), (3370, 5516), (3940, 4718)]