18741620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10529}}^1$

素因数の和:10627

約数の個数: 24

約数和(自身を含む): 39803400

約数和(自身を除く): 21061780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10529, 21058, 42116, 52645, 105290, 210580, 937081, 1874162, 3748324, 4685405, 9370810, 18741620]

約数ペア:

[(1, 18741620), (2, 9370810), (4, 4685405), (5, 3748324), (10, 1874162), (20, 937081), (89, 210580), (178, 105290), (356, 52645), (445, 42116), (890, 21058), (1780, 10529)]