31440656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{151157}}^1$

素因数の和:151178

約数の個数: 20

約数和(自身を含む): 65602572

約数和(自身を除く): 34161916

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 151157, 302314, 604628, 1209256, 1965041, 2418512, 3930082, 7860164, 15720328, 31440656]

約数ペア:

[(1, 31440656), (2, 15720328), (4, 7860164), (8, 3930082), (13, 2418512), (16, 1965041), (26, 1209256), (52, 604628), (104, 302314), (208, 151157)]