66540400

素因数分解:

$2^4\times 5^2\times {\mathrm{166351}}^1$

素因数の和:166369

約数の個数: 30

約数和(自身を含む): 159864272

約数和(自身を除く): 93323872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 166351, 332702, 665404, 831755, 1330808, 1663510, 2661616, 3327020, 4158775, 6654040, 8317550, 13308080, 16635100, 33270200, 66540400]

約数ペア:

[(1, 66540400), (2, 33270200), (4, 16635100), (5, 13308080), (8, 8317550), (10, 6654040), (16, 4158775), (20, 3327020), (25, 2661616), (40, 1663510), (50, 1330808), (80, 831755), (100, 665404), (200, 332702), (400, 166351)]