13257040

素因数分解:

$2^4\times 5^1\times {\mathrm{165713}}^1$

素因数の和:165726

約数の個数: 20

約数和(自身を含む): 30822804

約数和(自身を除く): 17565764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 165713, 331426, 662852, 828565, 1325704, 1657130, 2651408, 3314260, 6628520, 13257040]

約数ペア:

[(1, 13257040), (2, 6628520), (4, 3314260), (5, 2651408), (8, 1657130), (10, 1325704), (16, 828565), (20, 662852), (40, 331426), (80, 165713)]