1289778894

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{2521}}^1$

素因数の和:3233

約数の個数: 48

約数和(自身を含む): 2864971824

約数和(自身を除く): 1575192930

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 661, 774, 1322, 1983, 2521, 3966, 5042, 5949, 7563, 11898, 15126, 22689, 28423, 45378, 56846, 85269, 108403, 170538, 216806, 255807, 325209, 511614, 650418, 975627, 1666381, 1951254, 3332762, 4999143, 9998286, 14997429, 29994858, 71654383, 143308766, 214963149, 429926298, 644889447, 1289778894]

約数ペア:

[(1, 1289778894), (2, 644889447), (3, 429926298), (6, 214963149), (9, 143308766), (18, 71654383), (43, 29994858), (86, 14997429), (129, 9998286), (258, 4999143), (387, 3332762), (661, 1951254), (774, 1666381), (1322, 975627), (1983, 650418), (2521, 511614), (3966, 325209), (5042, 255807), (5949, 216806), (7563, 170538), (11898, 108403), (15126, 85269), (22689, 56846), (28423, 45378)]