202000840

素因数分解:

$2^3\times 5^1\times {\mathrm{5050021}}^1$

素因数の和:5050032

約数の個数: 16

約数和(自身を含む): 454501980

約数和(自身を除く): 252501140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5050021, 10100042, 20200084, 25250105, 40400168, 50500210, 101000420, 202000840]

約数ペア:

[(1, 202000840), (2, 101000420), (4, 50500210), (5, 40400168), (8, 25250105), (10, 20200084), (20, 10100042), (40, 5050021)]