66980383775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{157600903}}^1$

素因数の和:157600930

約数の個数: 12

約数和(自身を含む): 87941304432

約数和(自身を除く): 20960920657

約数列:

[1, 5, 17, 25, 85, 425, 157600903, 788004515, 2679215351, 3940022575, 13396076755, 66980383775]

約数ペア:

[(1, 66980383775), (5, 13396076755), (17, 3940022575), (25, 2679215351), (85, 788004515), (425, 157600903)]