87277420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{21929}}^1$

素因数の和:22137

約数の個数: 24

約数和(自身を含む): 184212000

約数和(自身を除く): 96934580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 21929, 43858, 87716, 109645, 219290, 438580, 4363871, 8727742, 17455484, 21819355, 43638710, 87277420]

約数ペア:

[(1, 87277420), (2, 43638710), (4, 21819355), (5, 17455484), (10, 8727742), (20, 4363871), (199, 438580), (398, 219290), (796, 109645), (995, 87716), (1990, 43858), (3980, 21929)]