2180676880

素因数分解:

$2^4\times 5^1\times {\mathrm{27258461}}^1$

素因数の和:27258474

約数の個数: 20

約数和(自身を含む): 5070073932

約数和(自身を除く): 2889397052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 27258461, 54516922, 109033844, 136292305, 218067688, 272584610, 436135376, 545169220, 1090338440, 2180676880]

約数ペア:

[(1, 2180676880), (2, 1090338440), (4, 545169220), (5, 436135376), (8, 272584610), (10, 218067688), (16, 136292305), (20, 109033844), (40, 54516922), (80, 27258461)]