19505080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{69661}}^1$

素因数の和:69679

約数の個数: 32

約数和(自身を含む): 50156640

約数和(自身を除く): 30651560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 69661, 139322, 278644, 348305, 487627, 557288, 696610, 975254, 1393220, 1950508, 2438135, 2786440, 3901016, 4876270, 9752540, 19505080]

約数ペア:

[(1, 19505080), (2, 9752540), (4, 4876270), (5, 3901016), (7, 2786440), (8, 2438135), (10, 1950508), (14, 1393220), (20, 975254), (28, 696610), (35, 557288), (40, 487627), (56, 348305), (70, 278644), (140, 139322), (280, 69661)]