20380550

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5741}}^1$

素因数の和:5824

約数の個数: 24

約数和(自身を含む): 38448432

約数和(自身を除く): 18067882

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 5741, 11482, 28705, 57410, 143525, 287050, 407611, 815222, 2038055, 4076110, 10190275, 20380550]

約数ペア:

[(1, 20380550), (2, 10190275), (5, 4076110), (10, 2038055), (25, 815222), (50, 407611), (71, 287050), (142, 143525), (355, 57410), (710, 28705), (1775, 11482), (3550, 5741)]