4728020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21491}}^1$

素因数の和:21511

約数の個数: 24

約数和(自身を含む): 10831968

約数和(自身を除く): 6103948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 21491, 42982, 85964, 107455, 214910, 236401, 429820, 472802, 945604, 1182005, 2364010, 4728020]

約数ペア:

[(1, 4728020), (2, 2364010), (4, 1182005), (5, 945604), (10, 472802), (11, 429820), (20, 236401), (22, 214910), (44, 107455), (55, 85964), (110, 42982), (220, 21491)]