19942340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90647}}^1$

素因数の和:90667

約数の個数: 24

約数和(自身を含む): 45686592

約数和(自身を除く): 25744252

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90647, 181294, 362588, 453235, 906470, 997117, 1812940, 1994234, 3988468, 4985585, 9971170, 19942340]

約数ペア:

[(1, 19942340), (2, 9971170), (4, 4985585), (5, 3988468), (10, 1994234), (11, 1812940), (20, 997117), (22, 906470), (44, 453235), (55, 362588), (110, 181294), (220, 90647)]