129443312

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{16477}}^1$

素因数の和:16976

約数の個数: 20

約数和(自身を含む): 251322456

約数和(自身を除く): 121879144

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 3928, 7856, 16477, 32954, 65908, 131816, 263632, 8090207, 16180414, 32360828, 64721656, 129443312]

約数ペア:

[(1, 129443312), (2, 64721656), (4, 32360828), (8, 16180414), (16, 8090207), (491, 263632), (982, 131816), (1964, 65908), (3928, 32954), (7856, 16477)]