81884270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{1987}}^1$

素因数の和:2324

約数の個数: 32

約数和(自身を含む): 159310368

約数和(自身を除く): 77426098

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 317, 634, 1585, 1987, 3170, 3974, 4121, 8242, 9935, 19870, 20605, 25831, 41210, 51662, 129155, 258310, 629879, 1259758, 3149395, 6298790, 8188427, 16376854, 40942135, 81884270]

約数ペア:

[(1, 81884270), (2, 40942135), (5, 16376854), (10, 8188427), (13, 6298790), (26, 3149395), (65, 1259758), (130, 629879), (317, 258310), (634, 129155), (1585, 51662), (1987, 41210), (3170, 25831), (3974, 20605), (4121, 19870), (8242, 9935)]