81685660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583469}}^1$

素因数の和:583485

約数の個数: 24

約数和(自身を含む): 196045920

約数和(自身を除く): 114360260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583469, 1166938, 2333876, 2917345, 4084283, 5834690, 8168566, 11669380, 16337132, 20421415, 40842830, 81685660]

約数ペア:

[(1, 81685660), (2, 40842830), (4, 20421415), (5, 16337132), (7, 11669380), (10, 8168566), (14, 5834690), (20, 4084283), (28, 2917345), (35, 2333876), (70, 1166938), (140, 583469)]