13579220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6229}}^1$

素因数の和:6347

約数の個数: 24

約数和(自身を含む): 28782600

約数和(自身を除く): 15203380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 6229, 12458, 24916, 31145, 62290, 124580, 678961, 1357922, 2715844, 3394805, 6789610, 13579220]

約数ペア:

[(1, 13579220), (2, 6789610), (4, 3394805), (5, 2715844), (10, 1357922), (20, 678961), (109, 124580), (218, 62290), (436, 31145), (545, 24916), (1090, 12458), (2180, 6229)]