20402836

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4447}}^1$

素因数の和:4519

約数の個数: 24

約数和(自身を含む): 37861376

約数和(自身を除く): 17458540

約数列:

[1, 2, 4, 31, 37, 62, 74, 124, 148, 1147, 2294, 4447, 4588, 8894, 17788, 137857, 164539, 275714, 329078, 551428, 658156, 5100709, 10201418, 20402836]

約数ペア:

[(1, 20402836), (2, 10201418), (4, 5100709), (31, 658156), (37, 551428), (62, 329078), (74, 275714), (124, 164539), (148, 137857), (1147, 17788), (2294, 8894), (4447, 4588)]