208568720

素因数分解:

$2^4\times 5^1\times {\mathrm{2607109}}^1$

素因数の和:2607122

約数の個数: 20

約数和(自身を含む): 484922460

約数和(自身を除く): 276353740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2607109, 5214218, 10428436, 13035545, 20856872, 26071090, 41713744, 52142180, 104284360, 208568720]

約数ペア:

[(1, 208568720), (2, 104284360), (4, 52142180), (5, 41713744), (8, 26071090), (10, 20856872), (16, 13035545), (20, 10428436), (40, 5214218), (80, 2607109)]