84160400

素因数分解:

$2^4\times 5^2\times {\mathrm{210401}}^1$

素因数の和:210419

約数の個数: 30

約数和(自身を含む): 202196322

約数和(自身を除く): 118035922

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 210401, 420802, 841604, 1052005, 1683208, 2104010, 3366416, 4208020, 5260025, 8416040, 10520050, 16832080, 21040100, 42080200, 84160400]

約数ペア:

[(1, 84160400), (2, 42080200), (4, 21040100), (5, 16832080), (8, 10520050), (10, 8416040), (16, 5260025), (20, 4208020), (25, 3366416), (40, 2104010), (50, 1683208), (80, 1052005), (100, 841604), (200, 420802), (400, 210401)]