666297940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{432661}}^1$

素因数の和:432688

約数の個数: 48

約数和(自身を含む): 1744493184

約数和(自身を除く): 1078195244

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 432661, 865322, 1730644, 2163305, 3028627, 4326610, 4759271, 6057254, 8653220, 9518542, 12114508, 15143135, 19037084, 23796355, 30286270, 33314897, 47592710, 60572540, 66629794, 95185420, 133259588, 166574485, 333148970, 666297940]

約数ペア:

[(1, 666297940), (2, 333148970), (4, 166574485), (5, 133259588), (7, 95185420), (10, 66629794), (11, 60572540), (14, 47592710), (20, 33314897), (22, 30286270), (28, 23796355), (35, 19037084), (44, 15143135), (55, 12114508), (70, 9518542), (77, 8653220), (110, 6057254), (140, 4759271), (154, 4326610), (220, 3028627), (308, 2163305), (385, 1730644), (770, 865322), (1540, 432661)]