19277180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74143}}^1$

素因数の和:74165

約数の個数: 24

約数和(自身を含む): 43596672

約数和(自身を除く): 24319492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74143, 148286, 296572, 370715, 741430, 963859, 1482860, 1927718, 3855436, 4819295, 9638590, 19277180]

約数ペア:

[(1, 19277180), (2, 9638590), (4, 4819295), (5, 3855436), (10, 1927718), (13, 1482860), (20, 963859), (26, 741430), (52, 370715), (65, 296572), (130, 148286), (260, 74143)]