18936220

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5231}}^1$

素因数の和:5421

約数の個数: 24

約数和(自身を含む): 39993408

約数和(自身を除く): 21057188

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 5231, 10462, 20924, 26155, 52310, 104620, 946811, 1893622, 3787244, 4734055, 9468110, 18936220]

約数ペア:

[(1, 18936220), (2, 9468110), (4, 4734055), (5, 3787244), (10, 1893622), (20, 946811), (181, 104620), (362, 52310), (724, 26155), (905, 20924), (1810, 10462), (3620, 5231)]