25706905

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:134

約数の個数: 64

約数和(自身を含む): 40550400

約数和(自身を除く): 14843495

約数列:

[1, 5, 7, 19, 29, 31, 35, 43, 95, 133, 145, 155, 203, 215, 217, 301, 551, 589, 665, 817, 899, 1015, 1085, 1247, 1333, 1505, 2755, 2945, 3857, 4085, 4123, 4495, 5719, 6235, 6293, 6665, 8729, 9331, 17081, 19285, 20615, 23693, 25327, 28595, 31465, 38657, 43645, 46655, 85405, 118465, 119567, 126635, 165851, 177289, 193285, 270599, 597835, 734483, 829255, 886445, 1352995, 3672415, 5141381, 25706905]

約数ペア:

[(1, 25706905), (5, 5141381), (7, 3672415), (19, 1352995), (29, 886445), (31, 829255), (35, 734483), (43, 597835), (95, 270599), (133, 193285), (145, 177289), (155, 165851), (203, 126635), (215, 119567), (217, 118465), (301, 85405), (551, 46655), (589, 43645), (665, 38657), (817, 31465), (899, 28595), (1015, 25327), (1085, 23693), (1247, 20615), (1333, 19285), (1505, 17081), (2755, 9331), (2945, 8729), (3857, 6665), (4085, 6293), (4123, 6235), (4495, 5719)]