1280776970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{159499}}^1$

素因数の和:159590

約数の個数: 32

約数和(自身を含む): 2549448000

約数和(自身を除く): 1268671030

約数列:

[1, 2, 5, 10, 11, 22, 55, 73, 110, 146, 365, 730, 803, 1606, 4015, 8030, 159499, 318998, 797495, 1594990, 1754489, 3508978, 8772445, 11643427, 17544890, 23286854, 58217135, 116434270, 128077697, 256155394, 640388485, 1280776970]

約数ペア:

[(1, 1280776970), (2, 640388485), (5, 256155394), (10, 128077697), (11, 116434270), (22, 58217135), (55, 23286854), (73, 17544890), (110, 11643427), (146, 8772445), (365, 3508978), (730, 1754489), (803, 1594990), (1606, 797495), (4015, 318998), (8030, 159499)]