18563020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1979}}^1$

素因数の和:2062

約数の個数: 48

約数和(自身を含む): 45239040

約数和(自身を除く): 26676020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 1979, 2345, 3958, 4690, 7916, 9380, 9895, 13853, 19790, 27706, 39580, 55412, 69265, 132593, 138530, 265186, 277060, 530372, 662965, 928151, 1325930, 1856302, 2651860, 3712604, 4640755, 9281510, 18563020]

約数ペア:

[(1, 18563020), (2, 9281510), (4, 4640755), (5, 3712604), (7, 2651860), (10, 1856302), (14, 1325930), (20, 928151), (28, 662965), (35, 530372), (67, 277060), (70, 265186), (134, 138530), (140, 132593), (268, 69265), (335, 55412), (469, 39580), (670, 27706), (938, 19790), (1340, 13853), (1876, 9895), (1979, 9380), (2345, 7916), (3958, 4690)]