80811952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{388519}}^1$

素因数の和:388540

約数の個数: 20

約数和(自身を含む): 168617680

約数和(自身を除く): 87805728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 388519, 777038, 1554076, 3108152, 5050747, 6216304, 10101494, 20202988, 40405976, 80811952]

約数ペア:

[(1, 80811952), (2, 40405976), (4, 20202988), (8, 10101494), (13, 6216304), (16, 5050747), (26, 3108152), (52, 1554076), (104, 777038), (208, 388519)]