280348520

素因数分解:

$2^3\times 5^1\times {\mathrm{7008713}}^1$

素因数の和:7008724

約数の個数: 16

約数和(自身を含む): 630784260

約数和(自身を除く): 350435740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7008713, 14017426, 28034852, 35043565, 56069704, 70087130, 140174260, 280348520]

約数ペア:

[(1, 280348520), (2, 140174260), (4, 70087130), (5, 56069704), (8, 35043565), (10, 28034852), (20, 14017426), (40, 7008713)]