20185428235

素因数分解:

$5^1\times 7^3\times {\mathrm{109}}^1\times {\mathrm{107981}}^1$

素因数の和:108116

約数の個数: 32

約数和(自身を含む): 28507248000

約数和(自身を除く): 8321819765

約数列:

[1, 5, 7, 35, 49, 109, 245, 343, 545, 763, 1715, 3815, 5341, 26705, 37387, 107981, 186935, 539905, 755867, 3779335, 5291069, 11769929, 26455345, 37037483, 58849645, 82389503, 185187415, 411947515, 576726521, 2883632605, 4037085647, 20185428235]

約数ペア:

[(1, 20185428235), (5, 4037085647), (7, 2883632605), (35, 576726521), (49, 411947515), (109, 185187415), (245, 82389503), (343, 58849645), (545, 37037483), (763, 26455345), (1715, 11769929), (3815, 5291069), (5341, 3779335), (26705, 755867), (37387, 539905), (107981, 186935)]