28580655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 51281280

約数和(自身を除く): 22700625

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 289, 323, 347, 867, 969, 1041, 1445, 1615, 1735, 4335, 4845, 5205, 5491, 5899, 6593, 16473, 17697, 19779, 27455, 29495, 32965, 82365, 88485, 98895, 100283, 112081, 300849, 336243, 501415, 560405, 1504245, 1681215, 1905377, 5716131, 9526885, 28580655]

約数ペア:

[(1, 28580655), (3, 9526885), (5, 5716131), (15, 1905377), (17, 1681215), (19, 1504245), (51, 560405), (57, 501415), (85, 336243), (95, 300849), (255, 112081), (285, 100283), (289, 98895), (323, 88485), (347, 82365), (867, 32965), (969, 29495), (1041, 27455), (1445, 19779), (1615, 17697), (1735, 16473), (4335, 6593), (4845, 5899), (5205, 5491)]