22222520

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2633}}^1$

素因数の和:2855

約数の個数: 32

約数和(自身を含む): 50256720

約数和(自身を除く): 28034200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 2633, 4220, 5266, 8440, 10532, 13165, 21064, 26330, 52660, 105320, 555563, 1111126, 2222252, 2777815, 4444504, 5555630, 11111260, 22222520]

約数ペア:

[(1, 22222520), (2, 11111260), (4, 5555630), (5, 4444504), (8, 2777815), (10, 2222252), (20, 1111126), (40, 555563), (211, 105320), (422, 52660), (844, 26330), (1055, 21064), (1688, 13165), (2110, 10532), (2633, 8440), (4220, 5266)]