25643975

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 39045120

約数和(自身を除く): 13401145

約数列:

[1, 5, 7, 25, 29, 31, 35, 145, 155, 163, 175, 203, 217, 725, 775, 815, 899, 1015, 1085, 1141, 4075, 4495, 4727, 5053, 5075, 5425, 5705, 6293, 22475, 23635, 25265, 28525, 31465, 33089, 35371, 118175, 126325, 146537, 157325, 165445, 176855, 732685, 827225, 884275, 1025759, 3663425, 5128795, 25643975]

約数ペア:

[(1, 25643975), (5, 5128795), (7, 3663425), (25, 1025759), (29, 884275), (31, 827225), (35, 732685), (145, 176855), (155, 165445), (163, 157325), (175, 146537), (203, 126325), (217, 118175), (725, 35371), (775, 33089), (815, 31465), (899, 28525), (1015, 25265), (1085, 23635), (1141, 22475), (4075, 6293), (4495, 5705), (4727, 5425), (5053, 5075)]