245015420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{942367}}^1$

素因数の和:942389

約数の個数: 24

約数和(自身を含む): 554112384

約数和(自身を除く): 309096964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 942367, 1884734, 3769468, 4711835, 9423670, 12250771, 18847340, 24501542, 49003084, 61253855, 122507710, 245015420]

約数ペア:

[(1, 245015420), (2, 122507710), (4, 61253855), (5, 49003084), (10, 24501542), (13, 18847340), (20, 12250771), (26, 9423670), (52, 4711835), (65, 3769468), (130, 1884734), (260, 942367)]