121615660

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{55787}}^1$

素因数の和:55905

約数の個数: 24

約数和(自身を含む): 257740560

約数和(自身を除く): 136124900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 55787, 111574, 223148, 278935, 557870, 1115740, 6080783, 12161566, 24323132, 30403915, 60807830, 121615660]

約数ペア:

[(1, 121615660), (2, 60807830), (4, 30403915), (5, 24323132), (10, 12161566), (20, 6080783), (109, 1115740), (218, 557870), (436, 278935), (545, 223148), (1090, 111574), (2180, 55787)]