28680785

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:150

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 16938415

約数列:

[1, 5, 7, 17, 19, 35, 43, 59, 85, 95, 119, 133, 215, 295, 301, 323, 413, 595, 665, 731, 817, 1003, 1121, 1505, 1615, 2065, 2261, 2537, 3655, 4085, 5015, 5117, 5605, 5719, 7021, 7847, 11305, 12685, 13889, 17759, 19057, 25585, 28595, 35105, 39235, 43129, 48203, 69445, 88795, 95285, 97223, 133399, 215645, 241015, 301903, 337421, 486115, 666995, 819451, 1509515, 1687105, 4097255, 5736157, 28680785]

約数ペア:

[(1, 28680785), (5, 5736157), (7, 4097255), (17, 1687105), (19, 1509515), (35, 819451), (43, 666995), (59, 486115), (85, 337421), (95, 301903), (119, 241015), (133, 215645), (215, 133399), (295, 97223), (301, 95285), (323, 88795), (413, 69445), (595, 48203), (665, 43129), (731, 39235), (817, 35105), (1003, 28595), (1121, 25585), (1505, 19057), (1615, 17759), (2065, 13889), (2261, 12685), (2537, 11305), (3655, 7847), (4085, 7021), (5015, 5719), (5117, 5605)]