28845705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{761}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 55741824

約数和(自身を除く): 26896119

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 361, 399, 665, 761, 1083, 1805, 1995, 2283, 2527, 3805, 5327, 5415, 7581, 11415, 12635, 14459, 15981, 26635, 37905, 43377, 72295, 79905, 101213, 216885, 274721, 303639, 506065, 824163, 1373605, 1518195, 1923047, 4120815, 5769141, 9615235, 28845705]

約数ペア:

[(1, 28845705), (3, 9615235), (5, 5769141), (7, 4120815), (15, 1923047), (19, 1518195), (21, 1373605), (35, 824163), (57, 506065), (95, 303639), (105, 274721), (133, 216885), (285, 101213), (361, 79905), (399, 72295), (665, 43377), (761, 37905), (1083, 26635), (1805, 15981), (1995, 14459), (2283, 12635), (2527, 11415), (3805, 7581), (5327, 5415)]