19450450

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5479}}^1$

素因数の和:5562

約数の個数: 24

約数和(自身を含む): 36694080

約数和(自身を除く): 17243630

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 5479, 10958, 27395, 54790, 136975, 273950, 389009, 778018, 1945045, 3890090, 9725225, 19450450]

約数ペア:

[(1, 19450450), (2, 9725225), (5, 3890090), (10, 1945045), (25, 778018), (50, 389009), (71, 273950), (142, 136975), (355, 54790), (710, 27395), (1775, 10958), (3550, 5479)]