19958904490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{285127207}}^1$

素因数の和:285127221

約数の個数: 16

約数和(自身を含む): 41058317952

約数和(自身を除く): 21099413462

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 285127207, 570254414, 1425636035, 1995890449, 2851272070, 3991780898, 9979452245, 19958904490]

約数ペア:

[(1, 19958904490), (2, 9979452245), (5, 3991780898), (7, 2851272070), (10, 1995890449), (14, 1425636035), (35, 570254414), (70, 285127207)]