28695303

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 56105280

約数和(自身を除く): 27409977

約数列:

[1, 3, 7, 9, 13, 17, 21, 27, 39, 51, 63, 81, 91, 117, 119, 153, 189, 221, 229, 273, 351, 357, 459, 567, 663, 687, 819, 1053, 1071, 1377, 1547, 1603, 1989, 2061, 2457, 2977, 3213, 3893, 4641, 4809, 5967, 6183, 7371, 8931, 9639, 11679, 13923, 14427, 17901, 18549, 20839, 26793, 27251, 35037, 41769, 43281, 50609, 62517, 80379, 81753, 105111, 125307, 129843, 151827, 187551, 241137, 245259, 315333, 354263, 455481, 562653, 735777, 1062789, 1366443, 1687959, 2207331, 3188367, 4099329, 9565101, 28695303]

約数ペア:

[(1, 28695303), (3, 9565101), (7, 4099329), (9, 3188367), (13, 2207331), (17, 1687959), (21, 1366443), (27, 1062789), (39, 735777), (51, 562653), (63, 455481), (81, 354263), (91, 315333), (117, 245259), (119, 241137), (153, 187551), (189, 151827), (221, 129843), (229, 125307), (273, 105111), (351, 81753), (357, 80379), (459, 62517), (567, 50609), (663, 43281), (687, 41769), (819, 35037), (1053, 27251), (1071, 26793), (1377, 20839), (1547, 18549), (1603, 17901), (1989, 14427), (2061, 13923), (2457, 11679), (2977, 9639), (3213, 8931), (3893, 7371), (4641, 6183), (4809, 5967)]