20512693121990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1597}}^1\times {\mathrm{29870969}}^1$

素因数の和:29872616

約数の個数: 32

約数和(自身を含む): 37805177567520

約数和(自身を除く): 17292484445530

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 1597, 3194, 7985, 15970, 68671, 137342, 343355, 686710, 29870969, 59741938, 149354845, 298709690, 1284451667, 2568903334, 6422258335, 12844516670, 47703937493, 95407874986, 238519687465, 477039374930, 2051269312199, 4102538624398, 10256346560995, 20512693121990]

約数ペア:

[(1, 20512693121990), (2, 10256346560995), (5, 4102538624398), (10, 2051269312199), (43, 477039374930), (86, 238519687465), (215, 95407874986), (430, 47703937493), (1597, 12844516670), (3194, 6422258335), (7985, 2568903334), (15970, 1284451667), (68671, 298709690), (137342, 149354845), (343355, 59741938), (686710, 29870969)]