121801820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{870013}}^1$

素因数の和:870029

約数の個数: 24

約数和(自身を含む): 292324704

約数和(自身を除く): 170522884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 870013, 1740026, 3480052, 4350065, 6090091, 8700130, 12180182, 17400260, 24360364, 30450455, 60900910, 121801820]

約数ペア:

[(1, 121801820), (2, 60900910), (4, 30450455), (5, 24360364), (7, 17400260), (10, 12180182), (14, 8700130), (20, 6090091), (28, 4350065), (35, 3480052), (70, 1740026), (140, 870013)]