31691530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{243781}}^1$

素因数の和:243801

約数の個数: 16

約数和(自身を含む): 61433064

約数和(自身を除く): 29741534

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 243781, 487562, 1218905, 2437810, 3169153, 6338306, 15845765, 31691530]

約数ペア:

[(1, 31691530), (2, 15845765), (5, 6338306), (10, 3169153), (13, 2437810), (26, 1218905), (65, 487562), (130, 243781)]