205965140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{251177}}^1$

素因数の和:251227

約数の個数: 24

約数和(自身を含む): 443077992

約数和(自身を除く): 237112852

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 251177, 502354, 1004708, 1255885, 2511770, 5023540, 10298257, 20596514, 41193028, 51491285, 102982570, 205965140]

約数ペア:

[(1, 205965140), (2, 102982570), (4, 51491285), (5, 41193028), (10, 20596514), (20, 10298257), (41, 5023540), (82, 2511770), (164, 1255885), (205, 1004708), (410, 502354), (820, 251177)]