20257420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53309}}^1$

素因数の和:53337

約数の個数: 24

約数和(自身を含む): 44780400

約数和(自身を除く): 24522980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53309, 106618, 213236, 266545, 533090, 1012871, 1066180, 2025742, 4051484, 5064355, 10128710, 20257420]

約数ペア:

[(1, 20257420), (2, 10128710), (4, 5064355), (5, 4051484), (10, 2025742), (19, 1066180), (20, 1012871), (38, 533090), (76, 266545), (95, 213236), (190, 106618), (380, 53309)]