19027820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135913}}^1$

素因数の和:135929

約数の個数: 24

約数和(自身を含む): 45667104

約数和(自身を除く): 26639284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135913, 271826, 543652, 679565, 951391, 1359130, 1902782, 2718260, 3805564, 4756955, 9513910, 19027820]

約数ペア:

[(1, 19027820), (2, 9513910), (4, 4756955), (5, 3805564), (7, 2718260), (10, 1902782), (14, 1359130), (20, 951391), (28, 679565), (35, 543652), (70, 271826), (140, 135913)]