19459180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74843}}^1$

素因数の和:74865

約数の個数: 24

約数和(自身を含む): 44008272

約数和(自身を除く): 24549092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74843, 149686, 299372, 374215, 748430, 972959, 1496860, 1945918, 3891836, 4864795, 9729590, 19459180]

約数ペア:

[(1, 19459180), (2, 9729590), (4, 4864795), (5, 3891836), (10, 1945918), (13, 1496860), (20, 972959), (26, 748430), (52, 374215), (65, 299372), (130, 149686), (260, 74843)]