99408080

素因数分解:

$2^4\times 5^1\times {\mathrm{1242601}}^1$

素因数の和:1242614

約数の個数: 20

約数和(自身を含む): 231123972

約数和(自身を除く): 131715892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1242601, 2485202, 4970404, 6213005, 9940808, 12426010, 19881616, 24852020, 49704040, 99408080]

約数ペア:

[(1, 99408080), (2, 49704040), (4, 24852020), (5, 19881616), (8, 12426010), (10, 9940808), (16, 6213005), (20, 4970404), (40, 2485202), (80, 1242601)]