18447940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131771}}^1$

素因数の和:131787

約数の個数: 24

約数和(自身を含む): 44275392

約数和(自身を除く): 25827452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131771, 263542, 527084, 658855, 922397, 1317710, 1844794, 2635420, 3689588, 4611985, 9223970, 18447940]

約数ペア:

[(1, 18447940), (2, 9223970), (4, 4611985), (5, 3689588), (7, 2635420), (10, 1844794), (14, 1317710), (20, 922397), (28, 658855), (35, 527084), (70, 263542), (140, 131771)]