81960112

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{394039}}^1$

素因数の和:394060

約数の個数: 20

約数和(自身を含む): 171013360

約数和(自身を除く): 89053248

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 394039, 788078, 1576156, 3152312, 5122507, 6304624, 10245014, 20490028, 40980056, 81960112]

約数ペア:

[(1, 81960112), (2, 40980056), (4, 20490028), (8, 10245014), (13, 6304624), (16, 5122507), (26, 3152312), (52, 1576156), (104, 788078), (208, 394039)]