219943820

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{10771}}^1$

素因数の和:11801

約数の個数: 24

約数和(自身を含む): 462377328

約数和(自身を除く): 242433508

約数列:

[1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 10210, 10771, 20420, 21542, 43084, 53855, 107710, 215420, 10997191, 21994382, 43988764, 54985955, 109971910, 219943820]

約数ペア:

[(1, 219943820), (2, 109971910), (4, 54985955), (5, 43988764), (10, 21994382), (20, 10997191), (1021, 215420), (2042, 107710), (4084, 53855), (5105, 43084), (10210, 21542), (10771, 20420)]