20487544

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:524

約数の個数: 64

約数和(自身を含む): 48614400

約数和(自身を除く): 28126856

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 79, 88, 154, 158, 308, 316, 421, 553, 616, 632, 842, 869, 1106, 1684, 1738, 2212, 2947, 3368, 3476, 4424, 4631, 5894, 6083, 6952, 9262, 11788, 12166, 18524, 23576, 24332, 32417, 33259, 37048, 48664, 64834, 66518, 129668, 133036, 232813, 259336, 266072, 365849, 465626, 731698, 931252, 1463396, 1862504, 2560943, 2926792, 5121886, 10243772, 20487544]

約数ペア:

[(1, 20487544), (2, 10243772), (4, 5121886), (7, 2926792), (8, 2560943), (11, 1862504), (14, 1463396), (22, 931252), (28, 731698), (44, 465626), (56, 365849), (77, 266072), (79, 259336), (88, 232813), (154, 133036), (158, 129668), (308, 66518), (316, 64834), (421, 48664), (553, 37048), (616, 33259), (632, 32417), (842, 24332), (869, 23576), (1106, 18524), (1684, 12166), (1738, 11788), (2212, 9262), (2947, 6952), (3368, 6083), (3476, 5894), (4424, 4631)]