19563770180

素因数分解:

$2^2\times 5^1\times {\mathrm{2411}}^1\times {\mathrm{405719}}^1$

素因数の和:408139

約数の個数: 24

約数和(自身を含む): 41101058880

約数和(自身を除く): 21537288700

約数列:

[1, 2, 4, 5, 10, 20, 2411, 4822, 9644, 12055, 24110, 48220, 405719, 811438, 1622876, 2028595, 4057190, 8114380, 978188509, 1956377018, 3912754036, 4890942545, 9781885090, 19563770180]

約数ペア:

[(1, 19563770180), (2, 9781885090), (4, 4890942545), (5, 3912754036), (10, 1956377018), (20, 978188509), (2411, 8114380), (4822, 4057190), (9644, 2028595), (12055, 1622876), (24110, 811438), (48220, 405719)]