81717790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{15161}}^1$

素因数の和:15193

約数の個数: 48

約数和(自身を含む): 186674544

約数和(自身を除く): 104956754

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 5390, 15161, 30322, 75805, 106127, 151610, 166771, 212254, 333542, 530635, 742889, 833855, 1061270, 1167397, 1485778, 1667710, 2334794, 3714445, 5836985, 7428890, 8171779, 11673970, 16343558, 40858895, 81717790]

約数ペア:

[(1, 81717790), (2, 40858895), (5, 16343558), (7, 11673970), (10, 8171779), (11, 7428890), (14, 5836985), (22, 3714445), (35, 2334794), (49, 1667710), (55, 1485778), (70, 1167397), (77, 1061270), (98, 833855), (110, 742889), (154, 530635), (245, 333542), (385, 212254), (490, 166771), (539, 151610), (770, 106127), (1078, 75805), (2695, 30322), (5390, 15161)]