1380340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5309}}^1$

素因数の和:5331

約数の個数: 24

約数和(自身を含む): 3122280

約数和(自身を除く): 1741940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5309, 10618, 21236, 26545, 53090, 69017, 106180, 138034, 276068, 345085, 690170, 1380340]

約数ペア:

[(1, 1380340), (2, 690170), (4, 345085), (5, 276068), (10, 138034), (13, 106180), (20, 69017), (26, 53090), (52, 26545), (65, 21236), (130, 10618), (260, 5309)]