128517828

素因数分解:

$2^2\times 3^1\times {\mathrm{421}}^1\times {\mathrm{25439}}^1$

素因数の和:25867

約数の個数: 24

約数和(自身を含む): 300599040

約数和(自身を除く): 172081212

約数列:

[1, 2, 3, 4, 6, 12, 421, 842, 1263, 1684, 2526, 5052, 25439, 50878, 76317, 101756, 152634, 305268, 10709819, 21419638, 32129457, 42839276, 64258914, 128517828]

約数ペア:

[(1, 128517828), (2, 64258914), (3, 42839276), (4, 32129457), (6, 21419638), (12, 10709819), (421, 305268), (842, 152634), (1263, 101756), (1684, 76317), (2526, 50878), (5052, 25439)]