19963060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76781}}^1$

素因数の和:76803

約数の個数: 24

約数和(自身を含む): 45147816

約数和(自身を除く): 25184756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76781, 153562, 307124, 383905, 767810, 998153, 1535620, 1996306, 3992612, 4990765, 9981530, 19963060]

約数ペア:

[(1, 19963060), (2, 9981530), (4, 4990765), (5, 3992612), (10, 1996306), (13, 1535620), (20, 998153), (26, 767810), (52, 383905), (65, 307124), (130, 153562), (260, 76781)]