2019394820

素因数分解:

$2^2\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{64271}}^1$

素因数の和:65851

約数の個数: 24

約数和(自身を含む): 4243494528

約数和(自身を除く): 2224099708

約数列:

[1, 2, 4, 5, 10, 20, 1571, 3142, 6284, 7855, 15710, 31420, 64271, 128542, 257084, 321355, 642710, 1285420, 100969741, 201939482, 403878964, 504848705, 1009697410, 2019394820]

約数ペア:

[(1, 2019394820), (2, 1009697410), (4, 504848705), (5, 403878964), (10, 201939482), (20, 100969741), (1571, 1285420), (3142, 642710), (6284, 321355), (7855, 257084), (15710, 128542), (31420, 64271)]