19364140

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{991}}^1$

素因数の和:1977

約数の個数: 24

約数和(自身を含む): 40747392

約数和(自身を除く): 21383252

約数列:

[1, 2, 4, 5, 10, 20, 977, 991, 1954, 1982, 3908, 3964, 4885, 4955, 9770, 9910, 19540, 19820, 968207, 1936414, 3872828, 4841035, 9682070, 19364140]

約数ペア:

[(1, 19364140), (2, 9682070), (4, 4841035), (5, 3872828), (10, 1936414), (20, 968207), (977, 19820), (991, 19540), (1954, 9910), (1982, 9770), (3908, 4955), (3964, 4885)]