11985940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 26417664

約数和(自身を除く): 14431724

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 311, 410, 470, 622, 820, 940, 1244, 1555, 1927, 3110, 3854, 6220, 7708, 9635, 12751, 14617, 19270, 25502, 29234, 38540, 51004, 58468, 63755, 73085, 127510, 146170, 255020, 292340, 599297, 1198594, 2397188, 2996485, 5992970, 11985940]

約数ペア:

[(1, 11985940), (2, 5992970), (4, 2996485), (5, 2397188), (10, 1198594), (20, 599297), (41, 292340), (47, 255020), (82, 146170), (94, 127510), (164, 73085), (188, 63755), (205, 58468), (235, 51004), (311, 38540), (410, 29234), (470, 25502), (622, 19270), (820, 14617), (940, 12751), (1244, 9635), (1555, 7708), (1927, 6220), (3110, 3854)]