79927280

素因数分解:

$2^4\times 5^1\times {\mathrm{999091}}^1$

素因数の和:999104

約数の個数: 20

約数和(自身を含む): 185831112

約数和(自身を除く): 105903832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 999091, 1998182, 3996364, 4995455, 7992728, 9990910, 15985456, 19981820, 39963640, 79927280]

約数ペア:

[(1, 79927280), (2, 39963640), (4, 19981820), (5, 15985456), (8, 9990910), (10, 7992728), (16, 4995455), (20, 3996364), (40, 1998182), (80, 999091)]