168040340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{646309}}^1$

素因数の和:646331

約数の個数: 24

約数和(自身を含む): 380030280

約数和(自身を除く): 211989940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 646309, 1292618, 2585236, 3231545, 6463090, 8402017, 12926180, 16804034, 33608068, 42010085, 84020170, 168040340]

約数ペア:

[(1, 168040340), (2, 84020170), (4, 42010085), (5, 33608068), (10, 16804034), (13, 12926180), (20, 8402017), (26, 6463090), (52, 3231545), (65, 2585236), (130, 1292618), (260, 646309)]