80390180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309193}}^1$

素因数の和:309215

約数の個数: 24

約数和(自身を含む): 181806072

約数和(自身を除く): 101415892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 309193, 618386, 1236772, 1545965, 3091930, 4019509, 6183860, 8039018, 16078036, 20097545, 40195090, 80390180]

約数ペア:

[(1, 80390180), (2, 40195090), (4, 20097545), (5, 16078036), (10, 8039018), (13, 6183860), (20, 4019509), (26, 3091930), (52, 1545965), (65, 1236772), (130, 618386), (260, 309193)]