16328720

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:923

約数の個数: 40

約数和(自身を含む): 38133720

約数和(自身を除く): 21805000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 509, 802, 1018, 1604, 2005, 2036, 2545, 3208, 4010, 4072, 5090, 6416, 8020, 8144, 10180, 16040, 20360, 32080, 40720, 204109, 408218, 816436, 1020545, 1632872, 2041090, 3265744, 4082180, 8164360, 16328720]

約数ペア:

[(1, 16328720), (2, 8164360), (4, 4082180), (5, 3265744), (8, 2041090), (10, 1632872), (16, 1020545), (20, 816436), (40, 408218), (80, 204109), (401, 40720), (509, 32080), (802, 20360), (1018, 16040), (1604, 10180), (2005, 8144), (2036, 8020), (2545, 6416), (3208, 5090), (4010, 4072)]