227988380

素因数分解:

$2^2\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{5737}}^1$

素因数の和:7733

約数の個数: 24

約数和(自身を含む): 479100048

約数和(自身を除く): 251111668

約数列:

[1, 2, 4, 5, 10, 20, 1987, 3974, 5737, 7948, 9935, 11474, 19870, 22948, 28685, 39740, 57370, 114740, 11399419, 22798838, 45597676, 56997095, 113994190, 227988380]

約数ペア:

[(1, 227988380), (2, 113994190), (4, 56997095), (5, 45597676), (10, 22798838), (20, 11399419), (1987, 114740), (3974, 57370), (5737, 39740), (7948, 28685), (9935, 22948), (11474, 19870)]