213879080

素因数分解:

$2^3\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{5237}}^1$

素因数の和:6269

約数の個数: 32

約数和(自身を含む): 481791240

約数和(自身を除く): 267912160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1021, 2042, 4084, 5105, 5237, 8168, 10210, 10474, 20420, 20948, 26185, 40840, 41896, 52370, 104740, 209480, 5346977, 10693954, 21387908, 26734885, 42775816, 53469770, 106939540, 213879080]

約数ペア:

[(1, 213879080), (2, 106939540), (4, 53469770), (5, 42775816), (8, 26734885), (10, 21387908), (20, 10693954), (40, 5346977), (1021, 209480), (2042, 104740), (4084, 52370), (5105, 41896), (5237, 40840), (8168, 26185), (10210, 20948), (10474, 20420)]