74886380

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{42071}}^1$

素因数の和:42169

約数の個数: 24

約数和(自身を含む): 159032160

約数和(自身を除く): 84145780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 42071, 84142, 168284, 210355, 420710, 841420, 3744319, 7488638, 14977276, 18721595, 37443190, 74886380]

約数ペア:

[(1, 74886380), (2, 37443190), (4, 18721595), (5, 14977276), (10, 7488638), (20, 3744319), (89, 841420), (178, 420710), (356, 210355), (445, 168284), (890, 84142), (1780, 42071)]