19305220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87751}}^1$

素因数の和:87771

約数の個数: 24

約数和(自身を含む): 44227008

約数和(自身を除く): 24921788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87751, 175502, 351004, 438755, 877510, 965261, 1755020, 1930522, 3861044, 4826305, 9652610, 19305220]

約数ペア:

[(1, 19305220), (2, 9652610), (4, 4826305), (5, 3861044), (10, 1930522), (11, 1755020), (20, 965261), (22, 877510), (44, 438755), (55, 351004), (110, 175502), (220, 87751)]