203772020

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{51199}}^1$

素因数の和:51407

約数の個数: 24

約数和(自身を含む): 430080000

約数和(自身を除く): 226307980

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 51199, 102398, 204796, 255995, 511990, 1023980, 10188601, 20377202, 40754404, 50943005, 101886010, 203772020]

約数ペア:

[(1, 203772020), (2, 101886010), (4, 50943005), (5, 40754404), (10, 20377202), (20, 10188601), (199, 1023980), (398, 511990), (796, 255995), (995, 204796), (1990, 102398), (3980, 51199)]