639410032

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{411991}}^1$

素因数の和:412096

約数の個数: 20

約数和(自身を含む): 1251631696

約数和(自身を除く): 612221664

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 411991, 823982, 1647964, 3295928, 6591856, 39963127, 79926254, 159852508, 319705016, 639410032]

約数ペア:

[(1, 639410032), (2, 319705016), (4, 159852508), (8, 79926254), (16, 39963127), (97, 6591856), (194, 3295928), (388, 1647964), (776, 823982), (1552, 411991)]