79884040

素因数分解:

$2^3\times 5^1\times {\mathrm{1997101}}^1$

素因数の和:1997112

約数の個数: 16

約数和(自身を含む): 179739180

約数和(自身を除く): 99855140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1997101, 3994202, 7988404, 9985505, 15976808, 19971010, 39942020, 79884040]

約数ペア:

[(1, 79884040), (2, 39942020), (4, 19971010), (5, 15976808), (8, 9985505), (10, 7988404), (20, 3994202), (40, 1997101)]