129743180

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{18913}}^1$

素因数の和:18943

約数の個数: 48

約数和(自身を含む): 317755200

約数和(自身を除く): 188012020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 18913, 37826, 75652, 94565, 132391, 189130, 264782, 378260, 529564, 661955, 926737, 1323910, 1853474, 2647820, 3706948, 4633685, 6487159, 9267370, 12974318, 18534740, 25948636, 32435795, 64871590, 129743180]

約数ペア:

[(1, 129743180), (2, 64871590), (4, 32435795), (5, 25948636), (7, 18534740), (10, 12974318), (14, 9267370), (20, 6487159), (28, 4633685), (35, 3706948), (49, 2647820), (70, 1853474), (98, 1323910), (140, 926737), (196, 661955), (245, 529564), (343, 378260), (490, 264782), (686, 189130), (980, 132391), (1372, 94565), (1715, 75652), (3430, 37826), (6860, 18913)]