655216

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1321}}^1$

素因数の和:1360

約数の個数: 20

約数和(自身を含む): 1311424

約数和(自身を除く): 656208

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1321, 2642, 5284, 10568, 21136, 40951, 81902, 163804, 327608, 655216]

約数ペア:

[(1, 655216), (2, 327608), (4, 163804), (8, 81902), (16, 40951), (31, 21136), (62, 10568), (124, 5284), (248, 2642), (496, 1321)]