20197880

素因数分解:

$2^3\times 5^1\times {\mathrm{504947}}^1$

素因数の和:504958

約数の個数: 16

約数和(自身を含む): 45445320

約数和(自身を除く): 25247440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504947, 1009894, 2019788, 2524735, 4039576, 5049470, 10098940, 20197880]

約数ペア:

[(1, 20197880), (2, 10098940), (4, 5049470), (5, 4039576), (8, 2524735), (10, 2019788), (20, 1009894), (40, 504947)]