19689530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{281279}}^1$

素因数の和:281293

約数の個数: 16

約数和(自身を含む): 40504320

約数和(自身を除く): 20814790

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 281279, 562558, 1406395, 1968953, 2812790, 3937906, 9844765, 19689530]

約数ペア:

[(1, 19689530), (2, 9844765), (5, 3937906), (7, 2812790), (10, 1968953), (14, 1406395), (35, 562558), (70, 281279)]