160400

素因数分解:

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

素因数の和:419

約数の個数: 30

約数和(自身を含む): 386322

約数和(自身を除く): 225922

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 401, 802, 1604, 2005, 3208, 4010, 6416, 8020, 10025, 16040, 20050, 32080, 40100, 80200, 160400]

約数ペア:

[(1, 160400), (2, 80200), (4, 40100), (5, 32080), (8, 20050), (10, 16040), (16, 10025), (20, 8020), (25, 6416), (40, 4010), (50, 3208), (80, 2005), (100, 1604), (200, 802), (400, 401)]