1278082340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1558637}}^1$

素因数の和:1558687

約数の個数: 24

約数和(自身を含む): 2749437432

約数和(自身を除く): 1471355092

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1558637, 3117274, 6234548, 7793185, 15586370, 31172740, 63904117, 127808234, 255616468, 319520585, 639041170, 1278082340]

約数ペア:

[(1, 1278082340), (2, 639041170), (4, 319520585), (5, 255616468), (10, 127808234), (20, 63904117), (41, 31172740), (82, 15586370), (164, 7793185), (205, 6234548), (410, 3117274), (820, 1558637)]