20123961055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1132787}}^1$

素因数の和:1132839

約数の個数: 32

約数和(自身を含む): 29361864960

約数和(自身を除く): 9237903905

約数列:

[1, 5, 11, 17, 19, 55, 85, 95, 187, 209, 323, 935, 1045, 1615, 3553, 17765, 1132787, 5663935, 12460657, 19257379, 21522953, 62303285, 96286895, 107614765, 211831169, 236752483, 365890201, 1059155845, 1183762415, 1829451005, 4024792211, 20123961055]

約数ペア:

[(1, 20123961055), (5, 4024792211), (11, 1829451005), (17, 1183762415), (19, 1059155845), (55, 365890201), (85, 236752483), (95, 211831169), (187, 107614765), (209, 96286895), (323, 62303285), (935, 21522953), (1045, 19257379), (1615, 12460657), (3553, 5663935), (17765, 1132787)]