7808889680

素因数分解:

$2^4\times 5^1\times {\mathrm{97611121}}^1$

素因数の和:97611134

約数の個数: 20

約数和(自身を含む): 18155668692

約数和(自身を除く): 10346779012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97611121, 195222242, 390444484, 488055605, 780888968, 976111210, 1561777936, 1952222420, 3904444840, 7808889680]

約数ペア:

[(1, 7808889680), (2, 3904444840), (4, 1952222420), (5, 1561777936), (8, 976111210), (10, 780888968), (16, 488055605), (20, 390444484), (40, 195222242), (80, 97611121)]