20201552500

素因数分解:

$2^2\times 5^4\times {\mathrm{8080621}}^1$

素因数の和:8080645

約数の個数: 30

約数和(自身を含む): 44176760474

約数和(自身を除く): 23975207974

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 8080621, 16161242, 32322484, 40403105, 80806210, 161612420, 202015525, 404031050, 808062100, 1010077625, 2020155250, 4040310500, 5050388125, 10100776250, 20201552500]

約数ペア:

[(1, 20201552500), (2, 10100776250), (4, 5050388125), (5, 4040310500), (10, 2020155250), (20, 1010077625), (25, 808062100), (50, 404031050), (100, 202015525), (125, 161612420), (250, 80806210), (500, 40403105), (625, 32322484), (1250, 16161242), (2500, 8080621)]