20882620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4127}}^1$

素因数の和:4170

約数の個数: 48

約数和(自身を含む): 49932288

約数和(自身を除く): 29049668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 4127, 5060, 8254, 16508, 20635, 41270, 45397, 82540, 90794, 94921, 181588, 189842, 226985, 379684, 453970, 474605, 907940, 949210, 1044131, 1898420, 2088262, 4176524, 5220655, 10441310, 20882620]

約数ペア:

[(1, 20882620), (2, 10441310), (4, 5220655), (5, 4176524), (10, 2088262), (11, 1898420), (20, 1044131), (22, 949210), (23, 907940), (44, 474605), (46, 453970), (55, 379684), (92, 226985), (110, 189842), (115, 181588), (220, 94921), (230, 90794), (253, 82540), (460, 45397), (506, 41270), (1012, 20635), (1265, 16508), (2530, 8254), (4127, 5060)]