204078340

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{12613}}^1$

素因数の和:13431

約数の個数: 24

約数和(自身を含む): 429128280

約数和(自身を除く): 225049940

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 12613, 16180, 25226, 50452, 63065, 126130, 252260, 10203917, 20407834, 40815668, 51019585, 102039170, 204078340]

約数ペア:

[(1, 204078340), (2, 102039170), (4, 51019585), (5, 40815668), (10, 20407834), (20, 10203917), (809, 252260), (1618, 126130), (3236, 63065), (4045, 50452), (8090, 25226), (12613, 16180)]