19504730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{278639}}^1$

素因数の和:278653

約数の個数: 16

約数和(自身を含む): 40124160

約数和(自身を除く): 20619430

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 278639, 557278, 1393195, 1950473, 2786390, 3900946, 9752365, 19504730]

約数ペア:

[(1, 19504730), (2, 9752365), (5, 3900946), (7, 2786390), (10, 1950473), (14, 1393195), (35, 557278), (70, 278639)]