19893490

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28019}}^1$

素因数の和:28097

約数の個数: 16

約数和(自身を含む): 36313920

約数和(自身を除く): 16420430

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28019, 56038, 140095, 280190, 1989349, 3978698, 9946745, 19893490]

約数ペア:

[(1, 19893490), (2, 9946745), (5, 3978698), (10, 1989349), (71, 280190), (142, 140095), (355, 56038), (710, 28019)]