243640400

素因数分解:

$2^4\times 5^2\times {\mathrm{609101}}^1$

素因数の和:609119

約数の個数: 30

約数和(自身を含む): 585347022

約数和(自身を除く): 341706622

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 609101, 1218202, 2436404, 3045505, 4872808, 6091010, 9745616, 12182020, 15227525, 24364040, 30455050, 48728080, 60910100, 121820200, 243640400]

約数ペア:

[(1, 243640400), (2, 121820200), (4, 60910100), (5, 48728080), (8, 30455050), (10, 24364040), (16, 15227525), (20, 12182020), (25, 9745616), (40, 6091010), (50, 4872808), (80, 3045505), (100, 2436404), (200, 1218202), (400, 609101)]