8164360

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 18451800

約数和(自身を除く): 10287440

約数列:

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

約数ペア:

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