20403800

素因数分解:

$2^3\times 5^2\times {\mathrm{102019}}^1$

素因数の和:102035

約数の個数: 24

約数和(自身を含む): 47439300

約数和(自身を除く): 27035500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 102019, 204038, 408076, 510095, 816152, 1020190, 2040380, 2550475, 4080760, 5100950, 10201900, 20403800]

約数ペア:

[(1, 20403800), (2, 10201900), (4, 5100950), (5, 4080760), (8, 2550475), (10, 2040380), (20, 1020190), (25, 816152), (40, 510095), (50, 408076), (100, 204038), (200, 102019)]