209344880

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{10949}}^1$

素因数の和:11201

約数の個数: 40

約数和(自身を含む): 488808000

約数和(自身を除く): 279463120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1912, 2390, 3824, 4780, 9560, 10949, 19120, 21898, 43796, 54745, 87592, 109490, 175184, 218980, 437960, 875920, 2616811, 5233622, 10467244, 13084055, 20934488, 26168110, 41868976, 52336220, 104672440, 209344880]

約数ペア:

[(1, 209344880), (2, 104672440), (4, 52336220), (5, 41868976), (8, 26168110), (10, 20934488), (16, 13084055), (20, 10467244), (40, 5233622), (80, 2616811), (239, 875920), (478, 437960), (956, 218980), (1195, 175184), (1912, 109490), (2390, 87592), (3824, 54745), (4780, 43796), (9560, 21898), (10949, 19120)]