16489040

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2903}}^1$

素因数の和:2987

約数の個数: 40

約数和(自身を含む): 38890368

約数和(自身を除く): 22401328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 2903, 5680, 5806, 11612, 14515, 23224, 29030, 46448, 58060, 116120, 206113, 232240, 412226, 824452, 1030565, 1648904, 2061130, 3297808, 4122260, 8244520, 16489040]

約数ペア:

[(1, 16489040), (2, 8244520), (4, 4122260), (5, 3297808), (8, 2061130), (10, 1648904), (16, 1030565), (20, 824452), (40, 412226), (71, 232240), (80, 206113), (142, 116120), (284, 58060), (355, 46448), (568, 29030), (710, 23224), (1136, 14515), (1420, 11612), (2840, 5806), (2903, 5680)]