16988120

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1777}}^1$

素因数の和:2027

約数の個数: 32

約数和(自身を含む): 38404800

約数和(自身を除く): 21416680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1777, 1912, 2390, 3554, 4780, 7108, 8885, 9560, 14216, 17770, 35540, 71080, 424703, 849406, 1698812, 2123515, 3397624, 4247030, 8494060, 16988120]

約数ペア:

[(1, 16988120), (2, 8494060), (4, 4247030), (5, 3397624), (8, 2123515), (10, 1698812), (20, 849406), (40, 424703), (239, 71080), (478, 35540), (956, 17770), (1195, 14216), (1777, 9560), (1912, 8885), (2390, 7108), (3554, 4780)]