202637720

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{25457}}^1$

素因数の和:25667

約数の個数: 32

約数和(自身を含む): 458244000

約数和(自身を除く): 255606280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 25457, 50914, 101828, 127285, 203656, 254570, 509140, 1018280, 5065943, 10131886, 20263772, 25329715, 40527544, 50659430, 101318860, 202637720]

約数ペア:

[(1, 202637720), (2, 101318860), (4, 50659430), (5, 40527544), (8, 25329715), (10, 20263772), (20, 10131886), (40, 5065943), (199, 1018280), (398, 509140), (796, 254570), (995, 203656), (1592, 127285), (1990, 101828), (3980, 50914), (7960, 25457)]