100809749780

素因数分解:

$2^2\times 5^1\times {\mathrm{5040487489}}^1$

素因数の和:5040487498

約数の個数: 12

約数和(自身を含む): 211700474580

約数和(自身を除く): 110890724800

約数列:

[1, 2, 4, 5, 10, 20, 5040487489, 10080974978, 20161949956, 25202437445, 50404874890, 100809749780]

約数ペア:

[(1, 100809749780), (2, 50404874890), (4, 25202437445), (5, 20161949956), (10, 10080974978), (20, 5040487489)]