20532140

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4483}}^1$

素因数の和:4721

約数の個数: 24

約数和(自身を含む): 43315440

約数和(自身を除く): 22783300

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4483, 4580, 8966, 17932, 22415, 44830, 89660, 1026607, 2053214, 4106428, 5133035, 10266070, 20532140]

約数ペア:

[(1, 20532140), (2, 10266070), (4, 5133035), (5, 4106428), (10, 2053214), (20, 1026607), (229, 89660), (458, 44830), (916, 22415), (1145, 17932), (2290, 8966), (4483, 4580)]