9000400

素因数分解:

$2^4\times 5^2\times {\mathrm{22501}}^1$

素因数の和:22519

約数の個数: 30

約数和(自身を含む): 21624422

約数和(自身を除く): 12624022

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 22501, 45002, 90004, 112505, 180008, 225010, 360016, 450020, 562525, 900040, 1125050, 1800080, 2250100, 4500200, 9000400]

約数ペア:

[(1, 9000400), (2, 4500200), (4, 2250100), (5, 1800080), (8, 1125050), (10, 900040), (16, 562525), (20, 450020), (25, 360016), (40, 225010), (50, 180008), (80, 112505), (100, 90004), (200, 45002), (400, 22501)]