11200400

素因数分解:

$2^4\times 5^2\times {\mathrm{28001}}^1$

素因数の和:28019

約数の個数: 30

約数和(自身を含む): 26909922

約数和(自身を除く): 15709522

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 28001, 56002, 112004, 140005, 224008, 280010, 448016, 560020, 700025, 1120040, 1400050, 2240080, 2800100, 5600200, 11200400]

約数ペア:

[(1, 11200400), (2, 5600200), (4, 2800100), (5, 2240080), (8, 1400050), (10, 1120040), (16, 700025), (20, 560020), (25, 448016), (40, 280010), (50, 224008), (80, 140005), (100, 112004), (200, 56002), (400, 28001)]